Make It Tea - public:radio:topics:svxlink

MB7AZE SvxLink

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 19:44:18 +0000

MB7AZE is now QRT and the NoV has expired.

The following is for historical interest only….

MB7AZE SvxLink

NoV issued April 2022

Hardware

Platform	Rapsberry Pi
Software	SVXLink
Interface	CM108 Soundcard
Radio	FT-8900 or FT-60
Frequency	430.050MHz

Network

Connected to G4NAB SVXReflector and visible on the UK SVXLink Reflector portal :

http://svxportal-uk.ddns.net:81/index.php

MB7AZE SvxLink Config

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 06:39:56 +0000

←SVXLink

MB7AZE is now QRT and the NoV has expired.

The following is for historical interest only….

MB7AZE SvxLink Config

Main config file

svxlink.conf

svxlink.conf

###############################################################################
#                                                                             #
#                Configuration file for the SvxLink server                    #
#                                                                             #
###############################################################################
 
[GLOBAL]
#MODULE_PATH=/usr/lib/arm-linux-gnueabihf/svxlink
LOGICS=SimplexLogic,ReflectorLogic
CFG_DIR=svxlink.d
TIMESTAMP_FORMAT="%c"
CARD_SAMPLE_RATE=48000
#CARD_CHANNELS=1
LOCATION_INFO=LocationInfo
LINKS=LinkToReflector
 
[SimplexLogic]
TYPE=Simplex
RX=Rx1
TX=Tx1
DEFAULT_LANG=en_US
MODULES=ModuleHelp,ModuleEchoLink,ModuleParrot
CALLSIGN=MB7AZE
SHORT_IDENT_INTERVAL=15
SHORT_CW_ID_ENABLE=1
SHORT_VOICE_ID_ENABLE=0
LONG_VOICE_ID_ENABLE=1
CW_AMP=-20
CW_PITCH=1000
CW_WPM=20
LONG_IDENT_INTERVAL=60
#IDENT_ONLY_AFTER_TX=4
#EXEC_CMD_ON_SQL_CLOSE=500
EVENT_HANDLER=/usr/local/share/svxlink/events.tcl
RGR_SOUND_DELAY=0
#REPORT_CTCSS=77.0
TX_CTCSS=ALWAYS
MACROS=Macros
FX_GAIN_NORMAL=0
FX_GAIN_LOW=-12
#ACTIVATE_MODULE_ON_LONG_CMD=4:EchoLink
#QSO_RECORDER=8:QsoRecorder
ONLINE_CMD=998877
#MUTE_RX_ON_TX=1
#MUTE_TX_ON_RX=1
#STATE_PTY=/var/run/svxlink/state
#DTMF_CTRL_PTY=/dev/shm/simplex_dtmf_ctrl
TIME_FORMAT=24
RGR_SOUND_ALWAYS=1
 
[RepeaterLogic]
TYPE=Repeater
RX=Rx1
TX=Tx1
MODULES=ModuleHelp,ModuleParrot,ModuleEchoLink,ModuleTclVoiceMail
CALLSIGN=MYCALL
SHORT_IDENT_INTERVAL=10
LONG_IDENT_INTERVAL=60
#IDENT_ONLY_AFTER_TX=4
#EXEC_CMD_ON_SQL_CLOSE=500
EVENT_HANDLER=/usr/local/share/svxlink/events.tcl
DEFAULT_LANG=en_US
RGR_SOUND_DELAY=0
REPORT_CTCSS=136.5
#TX_CTCSS=SQL_OPEN
MACROS=Macros
#SEL5_MACRO_RANGE=03400,03499
FX_GAIN_NORMAL=0
FX_GAIN_LOW=-12
#QSO_RECORDER=8:QsoRecorder
#NO_REPEAT=1
IDLE_TIMEOUT=30
OPEN_ON_1750=1000
#OPEN_ON_CTCSS=136:2000
#OPEN_ON_DTMF=*
#OPEN_ON_SQL=5000
#OPEN_ON_SEL5=01234
#OPEN_SQL_FLANK=OPEN
#OPEN_ON_SQL_AFTER_RPT_CLOSE=10
IDLE_SOUND_INTERVAL=3000
#SQL_FLAP_SUP_MIN_TIME=1000
#SQL_FLAP_SUP_MAX_COUNT=10
#ACTIVATE_MODULE_ON_LONG_CMD=4:EchoLink
#IDENT_NAG_TIMEOUT=15
#IDENT_NAG_MIN_TIME=2000
#ONLINE_CMD=998877
#STATE_PTY=/var/run/svxlink/state
#DTMF_CTRL_PTY=/dev/shm/repeater_dtmf_ctrl
 
[ReflectorLogic]
TYPE=Reflector
DEFAULT_LANG=en_US
HOSTS="put the right server address in here"
HOST_PORT=5300
CALLSIGN=MB7AZE
AUTH_KEY="put the right password in here"
JITTER_BUFFER_DELAY=0
DEFAULT_TG=0
MONITOR_TGS=8,91,235,2350,2351,23520,23590,23561
TG_SELECT_TIMEOUT=60
ANNOUNCE_REMOTE_MIN_INTERVAL=300
MUTE_FIRST_TX_LOC=0
MUTE_FIRST_TX_REM=0
TMP_MONITOR_TIMEOUT=3600
EVENT_HANDLER=/usr/local/share/svxlink/events.tcl
NODE_INFO_FILE=/usr/local/etc/svxlink/node_info.json
 
[LinkToReflector]
CONNECT_LOGICS=SimplexLogic:9:,ReflectorLogic
DEFAULT_ACTIVE=1
#TIMEOUT=300
#AUTOACTIVATE_ON_SQL=RepeaterLogic
OPTIONS=DEFAULT_CONNECT,NO_DISCONNECT
 
[QsoRecorder]
REC_DIR=/var/spool/svxlink/qso_recorder
#MIN_TIME=1000
MAX_TIME=3600
SOFT_TIME=300
MAX_DIRSIZE=1024
#DEFAULT_ACTIVE=1
#TIMEOUT=300
#QSO_TIMEOUT=300
#ENCODER_CMD=/usr/bin/oggenc -Q \"%f\" && rm \"%f\"
 
[Voter]
TYPE=Voter
RECEIVERS=Rx1,Rx2,Rx3
VOTING_DELAY=200
BUFFER_LENGTH=0
#REVOTE_INTERVAL=1000
#HYSTERESIS=50
#SQL_CLOSE_REVOTE_DELAY=500
#RX_SWITCH_DELAY=500
#COMMAND_PTY=/dev/shm/voter_ctrl
 
[MultiTx]
TYPE=Multi
TRANSMITTERS=Tx1,Tx2,Tx3
 
[NetRx]
TYPE=Net
HOST=remote.rx.host
TCP_PORT=5210
#LOG_DISCONNECTS_ONCE=0
AUTH_KEY="Change this key now!"
CODEC=S16
#SPEEX_ENC_FRAMES_PER_PACKET=4
#SPEEX_ENC_QUALITY=4
#SPEEX_ENC_BITRATE=15000
#SPEEX_ENC_COMPLEXITY=2
#SPEEX_ENC_VBR=0
#SPEEX_ENC_VBR_QUALITY=4
#SPEEX_ENC_ABR=15000
#SPEEX_DEC_ENHANCER=1
#OPUS_ENC_FRAME_SIZE=20
#OPUS_ENC_COMPLEXITY=10
#OPUS_ENC_BITRATE=20000
#OPUS_ENC_VBR=1
 
[NetTx]
TYPE=Net
HOST=remote.tx.host
TCP_PORT=5210
#LOG_DISCONNECTS_ONCE=0
AUTH_KEY="Change this key now!"
CODEC=S16
#SPEEX_ENC_FRAMES_PER_PACKET=4
#SPEEX_ENC_QUALITY=4
#SPEEX_ENC_BITRATE=15000
#SPEEX_ENC_COMPLEXITY=2
#SPEEX_ENC_VBR=0
#SPEEX_ENC_VBR_QUALITY=4
#SPEEX_ENC_ABR=15000
#SPEEX_DEC_ENHANCER=1
#OPUS_ENC_FRAME_SIZE=20
#OPUS_ENC_COMPLEXITY=10
#OPUS_ENC_BITRATE=20000
#OPUS_ENC_VBR=1
 
[Rx1]
TYPE=Local
AUDIO_DEV=alsa:plughw:1,0
AUDIO_CHANNEL=0
SQL_DET=CTCSS
SQL_START_DELAY=0
SQL_DELAY=0
SQL_HANGTIME=200
#SQL_EXTENDED_HANGTIME=1000
#SQL_EXTENDED_HANGTIME_THRESH=15
#SQL_TIMEOUT=600
VOX_FILTER_DEPTH=20
VOX_THRESH=1000
#CTCSS_MODE=2
CTCSS_FQ=77.0
#CTCSS_SNR_OFFSET=0
#CTCSS_OPEN_THRESH=15
#CTCSS_CLOSE_THRESH=9
#CTCSS_BPF_LOW=60
#CTCSS_BPF_HIGH=270
#SERIAL_PORT=/dev/ttyUSB0
#SERIAL_PIN=CTS
#SERIAL_SET_PINS=
#EVDEV_DEVNAME=/dev/input/by-id/usb-SYNIC_SYNIC_Wireless_Audio-event-if03
#EVDEV_OPEN=1,163,1
#EVDEV_CLOSE=1,163,0
#GPIO_PATH=/sys/class/gpio
#GPIO_SQL_PIN=gpio25
#PTY_PATH=/tmp/rx1_sql
HID_DEVICE=/dev/hidraw0
HID_SQL_PIN=!VOL_DN
#SIGLEV_DET=NOISE
SIGLEV_SLOPE=1
SIGLEV_OFFSET=0
#SIGLEV_BOGUS_THRESH=120
#TONE_SIGLEV_MAP=100,84,60,50,37,32,28,23,19,8
SIGLEV_OPEN_THRESH=30
SIGLEV_CLOSE_THRESH=10
DEEMPHASIS=1
#SQL_TAIL_ELIM=300
PREAMP=-0.5
#PEAK_METER=1
DTMF_DEC_TYPE=INTERNAL
DTMF_MUTING=1
DTMF_HANGTIME=40
DTMF_SERIAL=/dev/ttyS0
#DTMF_PTY=/tmp/rx1_dtmf
#DTMF_MAX_FWD_TWIST=8
#DTMF_MAX_REV_TWIST=4
#1750_MUTING=1
#SEL5_DEC_TYPE=INTERNAL
#SEL5_TYPE=ZVEI1
#FQ=433475000
#MODULATION=FM
#WBRX=WbRx1
 
[WbRx1]
#TYPE=RtlUsb
#DEV_MATCH=0
#HOST=localhost
#PORT=1234
#CENTER_FQ=435075000
#FQ_CORR=0
#GAIN=0
#PEAK_METER=1
#SAMPLE_RATE=960000
 
[Tx1]
TYPE=Local
AUDIO_DEV=alsa:plughw:1,0
AUDIO_CHANNEL=0
PTT_TYPE=Hidraw
#PTT_PORT=/dev/ttyS0
#PTT_PIN=HIDRAW
HID_DEVICE=/dev/hidraw0
HID_PTT_PIN=GPIO3
#SERIAL_SET_PINS=DTR!RTS
#GPIO_PATH=/sys/class/gpio
#PTT_HANGTIME=1000
TIMEOUT=300
TX_DELAY=500
CTCSS_FQ=77.0
CTCSS_LEVEL=20
PREEMPHASIS=1
DTMF_TONE_LENGTH=100
DTMF_TONE_SPACING=50
DTMF_DIGIT_PWR=-15
MASTER_GAIN=-3.5
 
[LocationInfo]
APRS_SERVER_LIST=euro.aprs2.net:14580
STATUS_SERVER_LIST=aprs.echolink.org:5199
LON_POSITION=1.25.30W
LAT_POSITION=60.17.18N
CALLSIGN=EL-MB7AZE
FREQUENCY=430.050
TX_POWER=1
ANTENNA_GAIN=0
ANTENNA_HEIGHT=1m
ANTENNA_DIR=-1
#PATH=WIDE1-1
BEACON_INTERVAL=60
TONE=77
COMMENT=Connected to UK Svx Reflector
 
[Macros]
1=EchoLink:9999#
2=EchoLink:973498#
3=EchoLink:662666#
4=:91235#
5=:9123561#
9=:910#

Audio levels

Devcal

Use the devcal program to set RX and TX audio levels.

This allows adjustment of alsamixer settings and then for fine tuning adjustment of PRE-AMP (for RX) and MASTER GAIN (for TX) config options to set the correct audio level INPUT on RX and deviation on TX.

Once the correct PRE-AMP or MASTER GAIN values have been determined in DEVCAL they are added to the relevant sections in svxlink.conf

To use DEVCAL first sudo killall svxlink

For Receive audio input:

sudo devcal -r -m=3000 -d=3000 /usr/local/etc/svxlink/svxlink.conf Rx1

Inject a signal to the radio @ ±3kHz deviation Adjust audio input level via

radio volume control
alsamixer Mic Capture level
devcal +/- to adjust PRE-AMP setting

until the displayed deviation agrees with the input signal's deviation.

Quit devcal

Transfer the displayed PRE-AMP value to the conf file.

For Transmit audio output

Monitor TX deviation

sudo devcal -t -m=3000 -d=3000 /usr/local/etc/svxlink/svxlink.conf Tx1

Toggle TX with T

Adjust

Alsamixer output
devcal +/-

to achieve ±3kHz TX deviation.

Turn off TX with T

Quit devcal

Copy the displayed MASTER GAIN value to the conf file.

sudo alsactl store

to save current mixer levels.

To prevent Echolink incoming connections while a Talkgroup is active

Uncomment :

proc tg_selected {new_tg old_tg} {
  puts "### tg_selected #$new_tg (old #$old_tg)"
  # Reject incoming Echolink connections while a talkgroup is active
  if {$new_tg != 0} {
    setConfigValue "ModuleEchoLink" "REJECT_INCOMING" "^.*$"
  } else {
    setConfigValue "ModuleEchoLink" "REJECT_INCOMING" "^$"
  }
}

in /usr/local/share/svxlink/events.d/local/ReflectorLogic.tcl

<svxinstall>/events.d/local/

Here are the 3 files containing tweaks to the standard behaviour.

Editing the original files (in events.d/) would work, but would get overwritten if the software is upgraded/re-installed. Putting local copies in events.d/local means the changes survive upgrades etc.

The actual path is:

/usr/local/share/svxlink/events.d/local/

I'll try to document what is different once I refresh my memory.

ReflectorLogic.tcl

###############################################################################
#
# ReflectorLogic event handlers
#
###############################################################################

#
# This is the namespace in which all functions below will exist. The name
# must match the corresponding section "[ReflectorLogic]" in the configuration
# file. The name may be changed but it must be changed in both places.
#
namespace eval ReflectorLogic {
 
# The currently selected TG. Variable set from application.
variable selected_tg 0

# The previously selected TG. Variable set from application.
variable previous_tg 0

# Timestamp for previous TG announcement
variable prev_announce_time 0

# The previously announced TG
variable prev_announce_tg 0

# The minimum time between announcements of the same TG.
# Change through ANNOUNCE_REMOTE_MIN_INTERVAL config variable.
variable announce_remote_min_interval 0

# This variable will be set to 1 if the QSY pending feature ("QSY on squelch
# activity") is active. See configuration variable QSY_PENDING_TIMEOUT.
variable qsy_pending_active 0

#
# Checking to see if this is the correct logic core
#
if {$logic_name != [namespace tail [namespace current]]} {
  return;
}

 
#
# Executed when an unknown command is received
#   cmd - The command string
#
proc unknown_command {cmd} {
  Logic::unknown_command $cmd;
}

 
#
# Executed when a received command fails
#
proc command_failed {cmd} {
  Logic::command_failed $cmd;
}

 
#
# Executed when manual TG announcement is triggered
#
proc report_tg_status {} {
  variable selected_tg
  variable previous_tg
  variable prev_announce_time
  variable prev_announce_tg
  playSilence 100
  if {$selected_tg > 0} {
    set prev_announce_time [clock seconds]
    set prev_announce_tg $selected_tg
    playMsg "Core" "talk_group"
    spellNumber $selected_tg
  } else {
    playMsg "Core" "previous"
    playMsg "Core" "talk_group"
    spellNumber $previous_tg
  }
}

 
#
# Executed when a TG has been selected
# This function is called immediately when a change in talkgroup selection
# occurs. In constrast, the other more specific talkgroup selection event
# functions below is called with a delay in order to make announcement ordering
# more logical.
#
#   new_tg -- The talk group that has been activated
#   old_tg -- The talk group that was active
#
proc tg_selected {new_tg old_tg} {
  puts "### tg_selected #$new_tg (old #$old_tg)"
  # Reject incoming Echolink connections while a talkgroup is active
  if {$new_tg != 0} {
    setConfigValue "ModuleEchoLink" "REJECT_INCOMING" "^.*$"
  } else {
    setConfigValue "ModuleEchoLink" "REJECT_INCOMING" "^$"
  }
}

 
#
# Executed when a TG has been selected due to local activity
#
#   new_tg -- The talk group that has been activated
#   old_tg -- The talk group that was active
#
proc tg_local_activation {new_tg old_tg} {
  variable prev_announce_time
  variable prev_announce_tg
  variable selected_tg
 
  puts "### tg_local_activation"
  if {$new_tg != $old_tg} {
    set prev_announce_time [clock seconds]
    set prev_announce_tg $new_tg
    playSilence 100
    playMsg "Core" "talk_group"
    spellNumber $new_tg
  }
}

 
#
# Executed when a TG has been selected due to remote activity
#
#   new_tg -- The talk group that has been activated
#   old_tg -- The talk group that was active
#
proc tg_remote_activation {new_tg old_tg} {
  variable prev_announce_time
  variable prev_announce_tg
  variable announce_remote_min_interval
 
  puts "### tg_remote_activation"
  set now [clock seconds];
  if {($new_tg == $prev_announce_tg) && \
      ($now - $prev_announce_time < $announce_remote_min_interval)} {
    return;
  }
  if {$new_tg != $old_tg} {
    set prev_announce_time $now
    set prev_announce_tg $new_tg
    playSilence 100
    playMsg "Core" "talk_group"
    spellNumber $new_tg
  }
}

 
#
# Executed when a TG has been selected due to remote activity on a prioritized
# monitored talk group while a lower prio talk group is selected
#
#   new_tg -- The talk group that has been activated
#   old_tg -- The talk group that was active
#
proc tg_remote_prio_activation {new_tg old_tg} {
  tg_remote_activation $new_tg $old_tg
}

 
#
# Executed when a TG has been selected by DTMF command
#
#   new_tg -- The talk group that has been activated
#   old_tg -- The talk group that was active
#
proc tg_command_activation {new_tg old_tg} {
  variable prev_announce_time
  variable prev_announce_tg
 
  puts "### tg_command_activation"
  set prev_announce_time [clock seconds]
  set prev_announce_tg $new_tg
  playSilence 100
  playMsg "Core" "talk_group"
  spellNumber $new_tg
}

 
#
# Executed when a TG has been selected due to DEFAULT_TG configuration
#
#   new_tg -- The talk group that has been activated
#   old_tg -- The talk group that was active
#
proc tg_default_activation {new_tg old_tg} {
  #variable prev_announce_time
  #variable prev_announce_tg
  #variable selected_tg
  puts "### tg_default_activation"
  #if {$new_tg != $old_tg} {
  #  set prev_announce_time [clock seconds]
  #  set prev_announce_tg $new_tg
  #  playSilence 100
  #  playMsg "Core" "talk_group"
  # spellNumber $new_tg
  #}
}

 
#
# Executed when a TG QSY request have been acted upon
#
#   new_tg -- The talk group that has been activated
#   old_tg -- The talk group that was active
#
proc tg_qsy {new_tg old_tg} {
  variable prev_announce_time
  variable prev_announce_tg
 
  puts "### tg_qsy"
  set prev_announce_time [clock seconds]
  set prev_announce_tg $new_tg
  playSilence 100
  playMsg "Core" "qsy"
  #playMsg "Core" "talk_group"
  spellNumber $new_tg
}

 
#
# Executed when a QSY is followed due to squelch open (see QSY_PENDING_TIMEOUT)
#
#   tg -- The talk group that has been activated
#
proc tg_qsy_on_sql {tg} {
  playSilence 100
  playMsg "Core" "qsy"
}

 
#
# Executed when a TG QSY request fails
#
# A TG QSY may fail for primarily two reasons, either no talk group is
# currently active or there is no connection to the reflector server.
#
proc tg_qsy_failed {} {
  puts "### tg_qsy_failed"
  playSilence 100
  playMsg "Core" "qsy"
  playSilence 200
  playMsg "Core" "operation_failed"
}

 
#
# Executed when a TG QSY request is pending
#
# tg -- The talk group requested in the QSY
#
proc tg_qsy_pending {tg} {
  playSilence 100
  playMsg "Core" "qsy"
  spellNumber $tg
  playMsg "Core" "pending"
}

 
#
# Executed when a TG QSY request is ignored
#
# tg -- The talk group requested in the QSY
#
proc tg_qsy_ignored {tg} {
  variable qsy_pending_active
  playSilence 100
  if {!$qsy_pending_active} {
    playMsg "Core" "qsy"
    spellNumber $tg
  }
  playMsg "Core" "ignored"
  playSilence 500
  playTone 880 200 50
  playTone 659 200 50
  playTone 440 200 50
  playSilence 100
}

 
#
# Executed when a TG selection has timed out
#
#   new_tg -- Always 0
#   old_tg -- The talk group that was active
#
proc tg_selection_timeout {new_tg old_tg} {
  puts "### tg_selection_timeout"
  if {$old_tg != 0} {
    playSilence 50
    playTone 880 200 50
    playTone 659 200 50
    playTone 440 200 50
    playSilence 50
#  } else {
#    playSilence 50
#    playTone 440 200 150
#    playSilence 50
 
}
}

#
# Executed on talker start
#
#   tg        -- The talk group
#   callsign  -- The callsign of the talker node
#
proc talker_start {tg callsign} {
  #puts "### Talker DID start on TG #$tg: $callsign"
}

 
#
# Executed on talker stop
#
#   tg        -- The talk group
#   callsign  -- The callsign of the talker node
#
proc talker_stop {tg callsign} {
  variable selected_tg
  variable ::Logic::CFG_CALLSIGN
  #puts "### Talker DID stop on TG #$tg: $callsign"
  if {($tg == $selected_tg) && ($callsign != $::Logic::CFG_CALLSIGN)} {
    playSilence 100
    playTone 440 200 50
    playTone 659 200 50
    playTone 880 200 50
    playSilence 100
  }
}

 
#
# A talk group was added for temporary monitoring
#
#   tg -- The added talk group
#
proc tmp_monitor_add {tg} {
  puts "### tmp_monitor_add: $tg"
  playSilence 50
  playMsg "Default" "activating"
  playMsg "Core" "monitor"
  spellNumber $tg
}

 
#
# A talk group was removed from temporary monitoring
#
#   tg -- The removed talk group
#
proc tmp_monitor_remove {tg} {
  puts "### tmp_monitor_remove: $tg"
  playSilence 50
  playMsg "Default" "deactivating"
  playMsg "Core" "monitor"
  spellNumber $tg
}
 
 
if [info exists ::Logic::CFG_ANNOUNCE_REMOTE_MIN_INTERVAL] {
  set announce_remote_min_interval $::Logic::CFG_ANNOUNCE_REMOTE_MIN_INTERVAL
}
 
if [info exists ::Logic::CFG_QSY_PENDING_TIMEOUT] {
  if {$::Logic::CFG_QSY_PENDING_TIMEOUT > 0} {
    set qsy_pending_active 1
  }
}

 
# end of namespace
}

 
#
# This file has not been truncated
#

Logic.tcl

###############################################################################
#
# Generic Logic event handlers
#
###############################################################################

#
# This is the namespace in which all functions and variables below will exist.
#
namespace eval Logic {
 
 
#
# A variable used to store a timestamp for the last identification.
#
variable prev_ident 0;
 
#
# A constant that indicates the minimum time in seconds to wait between two
# identifications. Manual and long identifications is not affected.
#
variable min_time_between_ident 120;
 
#
# Short and long identification intervals. They are setup from config
# variables below.
#
variable short_ident_interval 0;
variable long_ident_interval 0;
 
variable short_voice_id_enable  1
variable short_cw_id_enable     0
variable short_announce_enable  0
variable short_announce_file    ""
 
variable long_voice_id_enable   1
variable long_cw_id_enable      0
variable long_announce_enable   0
variable long_announce_file     ""

#
# The ident_only_after_tx variable indicates if identification is only to
# occur after the node has transmitted. The variable is setup below from the
# configuration variable with the same name.
# The need_ident variable indicates if identification is needed.
#
variable ident_only_after_tx 0;
variable need_ident 0;
 
#
# List of functions that should be called periodically. Use the
# addMinuteTickSubscriber and addSecondTickSubscriber functions to
# add subscribers.
#
variable minute_tick_subscribers [list];
variable second_tick_subscribers [list];
 
#
# Contains the ID of the last receiver that indicated squelch activity
#
variable sql_rx_id "?";
 
#
# Executed when the SvxLink software is started
#
proc startup {} {
  #playMsg "Core" "online"
  #send_short_ident
}

 
#
# Executed when a specified module could not be found
#   module_id - The numeric ID of the module
#
proc no_such_module {module_id} {
  playMsg "Core" "no_such_module";
  playNumber $module_id;
}

 
#
# Executed when a manual identification is initiated with the * DTMF code
#
proc manual_identification {} {
  global mycall;
  global report_ctcss;
  global active_module;
  global loaded_modules;
  variable CFG_TYPE;
  variable prev_ident;
 
  set epoch [clock seconds];
  set hour [clock format $epoch -format "%k"];
  regexp {([1-5]?\d)$} [clock format $epoch -format "%M"] -> minute;
  set prev_ident $epoch;
 
  playMsg "Core" "online";
  spellWord $mycall;
  if {$CFG_TYPE == "Repeater"} {
    playMsg "Core" "repeater";
  }
  playSilence 250;
  playMsg "Core" "the_time_is";
  playTime $hour $minute;
  playSilence 250;
  if {$report_ctcss > 0} {
    playMsg "Core" "pl_is";
    playFrequency $report_ctcss
    playSilence 300;
  }
  if {$active_module != ""} {
    playMsg "Core" "active_module";
    playMsg $active_module "name";
    playSilence 250;
    set func "::";
    append func $active_module "::status_report";
    if {"[info procs $func]" ne ""} {
      $func;
    }
  } else {
    foreach module [split $loaded_modules " "] {
      set func "::";
      append func $module "::status_report";
      if {"[info procs $func]" ne ""} {
	$func;
      }
    }
  }
  #playMsg "Default" "press_0_for_help"
  #playSilence 250;
}

 
#
# Executed when a short identification should be sent
#   hour    - The hour on which this identification occur
#   minute  - The minute on which this identification occur
#
proc send_short_ident {{hour -1} {minute -1}} {
  global mycall;
  variable CFG_TYPE;
  variable short_announce_file
  variable short_announce_enable
  variable short_voice_id_enable
  variable short_cw_id_enable

  # Play voice id if enabled
  if {$short_voice_id_enable} {
    puts "Playing short voice ID"
    spellWord $mycall;
    if {$CFG_TYPE == "Repeater"} {
      playMsg "Core" "repeater";
    }
    playSilence 500;
  }

  # Play announcement file if enabled
  if {$short_announce_enable} {
    puts "Playing short announce"
    if [file exist "$short_announce_file"] {
      playFile "$short_announce_file"
      playSilence 500
    }
  }

  # Play CW id if enabled
  if {$short_cw_id_enable} {
    puts "Playing short CW ID"
    if {$CFG_TYPE == "Repeater"} {
      set call "$mycall/R"
      CW::play $call
    } else {
      CW::play $mycall
    }
    playSilence 500;
  }
}

 
#
# Executed when a long identification (e.g. hourly) should be sent
#   hour    - The hour on which this identification occur
#   minute  - The minute on which this identification occur
#
proc send_long_ident {hour minute} {
  global mycall;
  global loaded_modules;
  global active_module;
  variable CFG_TYPE;
  variable long_announce_file
  variable long_announce_enable
  variable long_voice_id_enable
  variable long_cw_id_enable

  # Play the voice ID if enabled
  if {$long_voice_id_enable} {
    puts "Playing Long voice ID"
    spellWord $mycall;
    if {$CFG_TYPE == "Repeater"} {
      playMsg "Core" "repeater";
    }
    playSilence 500;
    playMsg "Core" "the_time_is";
    playSilence 100;
    playTime $hour $minute;
    playSilence 500;
 
    # Call the "status_report" function in all modules if no module is active
    if {$active_module == ""} {
      foreach module [split $loaded_modules " "] {
        set func "::";
        append func $module "::status_report";
        if {"[info procs $func]" ne ""} {
          $func;
        }
      }
    }
 
    playSilence 500;
  }

  # Play announcement file if enabled
  if {$long_announce_enable} {
    puts "Playing long announce"
    if [file exist "$long_announce_file"] {
      playFile "$long_announce_file"
      playSilence 500
    }
  }

  # Play CW id if enabled
  if {$long_cw_id_enable} {
    puts "Playing long CW ID"
    if {$CFG_TYPE == "Repeater"} {
      set call "$mycall/R"
      CW::play $call
    } else {
      CW::play $mycall
    }
    playSilence 100
  }
}

 
#
# Executed when the squelch have just closed and the RGR_SOUND_DELAY timer has
# expired.
#
proc send_rgr_sound {} {
  variable sql_rx_id
 
  if {$sql_rx_id != "?"} {
    # 150 CPM, 1000 Hz, -4 dBFS
    CW::play $sql_rx_id 150 1000 -4
    set sql_rx_id "?"
  } else {
    playTone 440 500 100
  }
  playSilence 100
}

 
#
# Executed when an empty macro command (i.e. D#) has been entered.
#
proc macro_empty {} {
  playMsg "Core" "operation_failed";
}

 
#
# Executed when an entered macro command could not be found
#
proc macro_not_found {} {
  playMsg "Core" "operation_failed";
}

 
#
# Executed when a macro syntax error occurs (configuration error).
#
proc macro_syntax_error {} {
  playMsg "Core" "operation_failed";
}

 
#
# Executed when the specified module in a macro command is not found
# (configuration error).
#
proc macro_module_not_found {} {
  playMsg "Core" "operation_failed";
}

 
#
# Executed when the activation of the module specified in the macro command
# failed.
#
proc macro_module_activation_failed {} {
  playMsg "Core" "operation_failed";
}

 
#
# Executed when a macro command is executed that requires a module to
# be activated but another module is already active.
#
proc macro_another_active_module {} {
  global active_module;
 
  playMsg "Core" "operation_failed";
  playMsg "Core" "active_module";
  playMsg $active_module "name";
}

 
#
# Executed when an unknown DTMF command is entered
#   cmd - The command string
#
proc unknown_command {cmd} {
  spellWord $cmd;
  playMsg "Core" "unknown_command";
}

 
#
# Executed when an entered DTMF command failed
#   cmd - The command string
#
proc command_failed {cmd} {
  spellWord $cmd;
  playMsg "Core" "operation_failed";
}

 
#
# Executed when a link to another logic core is activated.
#   name  - The name of the link
#
proc activating_link {name} {
  if {[string length $name] > 0} {
    playMsg "Core" "activating_link_to";
    spellWord $name;
  }
}

 
#
# Executed when a link to another logic core is deactivated.
#   name  - The name of the link
#
proc deactivating_link {name} {
  if {[string length $name] > 0} {
    playMsg "Core" "deactivating_link_to";
    spellWord $name;
  }
}

 
#
# Executed when trying to deactivate a link to another logic core but the
# link is not currently active.
#   name  - The name of the link
#
proc link_not_active {name} {
  if {[string length $name] > 0} {
    playMsg "Core" "link_not_active_to";
    spellWord $name;
  }
}

 
#
# Executed when trying to activate a link to another logic core but the
# link is already active.
#   name  - The name of the link
#
proc link_already_active {name} {
  if {[string length $name] > 0} {
    playMsg "Core" "link_already_active_to";
    spellWord $name;
  }
}

 
#
# Executed each time the transmitter is turned on or off
#   is_on - Set to 1 if the transmitter is on or 0 if it's off
#
proc transmit {is_on} {
  #puts "Turning the transmitter $is_on";
  variable prev_ident;
  variable need_ident;
  if {$is_on && ([clock seconds] - $prev_ident > 5)} {
    set need_ident 1;
  }
}

 
#
# Executed each time the squelch is opened or closed
#   rx_id   - The ID of the RX that the squelch opened/closed on
#   is_open - Set to 1 if the squelch is open or 0 if it's closed
#
proc squelch_open {rx_id is_open} {
  variable sql_rx_id;
  #puts "The squelch is $is_open on RX $rx_id";
  set sql_rx_id $rx_id;
}

 
#
# Executed when a DTMF digit has been received
#   digit     - The detected DTMF digit
#   duration  - The duration, in milliseconds, of the digit
#
# Return 1 to hide the digit from further processing in SvxLink or
# return 0 to make SvxLink continue processing as normal.
#
proc dtmf_digit_received {digit duration} {
  #puts "DTMF digit \"$digit\" detected with duration $duration ms";
  return 0;
}

 
#
# Executed when a DTMF command has been received
#   cmd - The command
#
# Return 1 to hide the command from further processing is SvxLink or
# return 0 to make SvxLink continue processing as normal.
#
# This function can be used to implement your own custom commands or to disable
# DTMF commands that you do not want users to execute.
proc dtmf_cmd_received {cmd} {
  #global active_module

  # Example: Ignore all commands starting with 3 in the EchoLink module.
  #          Allow commands that have four or more digits.
  #if {$active_module == "EchoLink"} {
  #  if {[string length $cmd] < 4 && [string index $cmd 0] == "3"} {
  #    puts "Ignoring random connect command for module EchoLink: $cmd"
  #    return 1
  #  }
  #}

  # Handle the "force core command" mode where a command is forced to be
  # executed by the core command processor instead of by an active module.
  # The "force core command" mode is entered by prefixing a command by a star.
  #if {$active_module != "" && [string index $cmd 0] != "*"} {
  #  return 0
  #}
  #if {[string index $cmd 0] == "*"} {
  #  set cmd [string range $cmd 1 end]
  #}

  # Example: Custom command executed when DTMF 99 is received
  #if {$cmd == "99"} {
  #  puts "Executing external command"
  #  playMsg "Core" "online"
  #  exec ls &
  #  return 1
  #}
 
  return 0
}

 
#
# Executed once every whole minute. Don't put any code here directly
# Create a new function and add it to the timer tick subscriber list
# by using the function addMinuteTickSubscriber.
#
proc every_minute {} {
  variable minute_tick_subscribers;
  #puts [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S"];
  foreach subscriber $minute_tick_subscribers {
    $subscriber;
  }
}

 
#
# Executed once every whole minute. Don't put any code here directly
# Create a new function and add it to the timer tick subscriber list
# by using the function addSecondTickSubscriber.
#
proc every_second {} {
  variable second_tick_subscribers;
  #puts [clock format [clock seconds] -format "%Y-%m-%d %H:%M:%S"];
  foreach subscriber $second_tick_subscribers {
    $subscriber;
  }
}

 
#
# Deprecated: Use the addMinuteTickSubscriber function instead
#
proc addTimerTickSubscriber {func} {
  puts "*** WARNING: Calling deprecated TCL event handler addTimerTickSubcriber."
  puts "             Use addMinuteTickSubscriber instead"
  addMinuteTickSubscriber $func;
}

 
#
# Use this function to add a function to the list of functions that
# should be executed once every whole minute. This is not an event
# function but rather a management function.
#
proc addMinuteTickSubscriber {func} {
  variable minute_tick_subscribers;
  lappend minute_tick_subscribers $func;
}

 
#
# Use this function to add a function to the list of functions that
# should be executed once every second. This is not an event
# function but rather a management function.
#
proc addSecondTickSubscriber {func} {
  variable second_tick_subscribers;
  lappend second_tick_subscribers $func;
}

 
#
# Should be executed once every whole minute to check if it is time to
# identify. Not exactly an event function. This function handle the
# identification logic and call the send_short_ident or send_long_ident
# functions when it is time to identify.
#
proc checkPeriodicIdentify {} {
  variable prev_ident;
  variable short_ident_interval;
  variable long_ident_interval;
  variable min_time_between_ident;
  variable ident_only_after_tx;
  variable need_ident;
  global logic_name;
 
  if {$short_ident_interval == 0} {
    return;
  }
 
  set now [clock seconds];
  set hour [clock format $now -format "%k"];
  regexp {([1-5]?\d)$} [clock format $now -format "%M"] -> minute;
 
  set short_ident_now \
      	    [expr {($hour * 60 + $minute) % $short_ident_interval == 0}];
  set long_ident_now 0;
  if {$long_ident_interval != 0} {
    set long_ident_now \
      	    [expr {($hour * 60 + $minute) % $long_ident_interval == 0}];
  }
 
  if {$long_ident_now} {
    puts "$logic_name: Sending long identification...";
    send_long_ident $hour $minute;
    set prev_ident $now;
    set need_ident 0;
  } else {
    if {$now - $prev_ident < $min_time_between_ident} {
      return;
    }
    if {$ident_only_after_tx && !$need_ident} {
      return;
    }
 
    if {$short_ident_now} {
      puts "$logic_name: Sending short identification...";
      send_short_ident $hour $minute;
      set prev_ident $now;
      set need_ident 0;
    }
  }
}

 
#
# Executed when the QSO recorder is being activated
#
proc activating_qso_recorder {} {
  playMsg "Core" "activating";
  playMsg "Core" "qso_recorder";
}

 
#
# Executed when the QSO recorder is being deactivated
#
proc deactivating_qso_recorder {} {
  playMsg "Core" "deactivating";
  playMsg "Core" "qso_recorder";
}

 
#
# Executed when trying to deactivate the QSO recorder even though it's
# not active
#
proc qso_recorder_not_active {} {
  playMsg "Core" "qso_recorder";
  playMsg "Core" "not_active";
}

 
#
# Executed when trying to activate the QSO recorder even though it's
# already active
#
proc qso_recorder_already_active {} {
  playMsg "Core" "qso_recorder";
  playMsg "Core" "already_active";
}

 
#
# Executed when the timeout kicks in to activate the QSO recorder
#
proc qso_recorder_timeout_activate {} {
  playMsg "Core" "timeout"
  playMsg "Core" "activating";
  playMsg "Core" "qso_recorder";
}

 
#
# Executed when the timeout kicks in to deactivate the QSO recorder
#
proc qso_recorder_timeout_deactivate {} {
  playMsg "Core" "timeout"
  playMsg "Core" "deactivating";
  playMsg "Core" "qso_recorder";
}

 
#
# Executed when the user is requesting a language change
#
proc set_language {lang_code} {
  global logic_name;
  puts "$logic_name: Setting language $lang_code (NOT IMPLEMENTED)";
 
}

 
#
# Executed when the user requests a list of available languages
#
proc list_languages {} {
  global logic_name;
  puts "$logic_name: Available languages: (NOT IMPLEMENTED)";
 
}

 
#
# Executed when the node is being brought online or offline
#
proc logic_online {online} {
  global mycall
  variable CFG_TYPE
 
  if {$online} {
    playMsg "Core" "online";
    spellWord $mycall;
    if {$CFG_TYPE == "Repeater"} {
      playMsg "Core" "repeater";
    }
  }
}

 
#
# Executed when a configuration variable is updated at runtime in the logic
# core
#
proc config_updated {tag value} {
  #puts "Configuration variable updated: $tag=$value"
}

 
#
# Executed when a DTMF command is received from another linked logic core
#
#   logic -- The name of the logic core
#   cmd   -- The received command
#
proc remote_cmd_received {logic cmd} {
  #puts "Remote command received from logic $logic: $cmd"
  #playDtmf "$cmd" "500" "50"
}

 
#
# Executed when a talkgroup is received from another linked logic core
#
#   logic -- The name of the logic core
#   tg    -- The received talkgroup
#
proc remote_received_tg_updated {logic tg} {
  #puts "Remote TG received from logic $logic: $tg"
  #if {$tg > 0} {
  #  playDtmf "1$tg" "500" "50"
  #}
}

 
##############################################################################
#
# Main program
#
##############################################################################
 
if [info exists CFG_SHORT_IDENT_INTERVAL] {
  if {$CFG_SHORT_IDENT_INTERVAL > 0} {
    set short_ident_interval $CFG_SHORT_IDENT_INTERVAL;
  }
}
 
if [info exists CFG_LONG_IDENT_INTERVAL] {
  if {$CFG_LONG_IDENT_INTERVAL > 0} {
    set long_ident_interval $CFG_LONG_IDENT_INTERVAL;
    if {$short_ident_interval == 0} {
      set short_ident_interval $long_ident_interval;
    }
  }
}
 
if [info exists CFG_IDENT_ONLY_AFTER_TX] {
  if {$CFG_IDENT_ONLY_AFTER_TX > 0} {
    set ident_only_after_tx $CFG_IDENT_ONLY_AFTER_TX;
  }
}
 
if [info exists CFG_SHORT_ANNOUNCE_ENABLE] {
  set short_announce_enable $CFG_SHORT_ANNOUNCE_ENABLE
}
 
if [info exists CFG_SHORT_ANNOUNCE_FILE] {
  set short_announce_file $CFG_SHORT_ANNOUNCE_FILE
}
 
if [info exists CFG_SHORT_VOICE_ID_ENABLE] {
  set short_voice_id_enable $CFG_SHORT_VOICE_ID_ENABLE
}
 
if [info exists CFG_SHORT_CW_ID_ENABLE] {
  set short_cw_id_enable $CFG_SHORT_CW_ID_ENABLE
}
 
if [info exists CFG_LONG_ANNOUNCE_ENABLE] {
  set long_announce_enable $CFG_LONG_ANNOUNCE_ENABLE
}
 
if [info exists CFG_LONG_ANNOUNCE_FILE] {
  set long_announce_file $CFG_LONG_ANNOUNCE_FILE
}
 
if [info exists CFG_LONG_VOICE_ID_ENABLE] {
  set long_voice_id_enable $CFG_LONG_VOICE_ID_ENABLE
}
 
if [info exists CFG_LONG_CW_ID_ENABLE] {
  set long_cw_id_enable $CFG_LONG_CW_ID_ENABLE
}

 
# end of namespace
}

#
# This file has not been truncated
#

EchoLink.tcl

###############################################################################
#
# EchoLink module event handlers
#
###############################################################################

#
# This is the namespace in which all functions and variables below will exist.
# The name must match the configuration variable "NAME" in the
# [ModuleEchoLink] section in the configuration file. The name may be changed
# but it must be changed in both places.
#
namespace eval EchoLink {
 
#
# Check if this module is loaded in the current logic core
#
if {![info exists CFG_ID]} {
  return;
}

#
# Extract the module name from the current namespace
#
set module_name [namespace tail [namespace current]];
 
#
# An "overloaded" playMsg that eliminates the need to write the module name
# as the first argument.
#
proc playMsg {msg} {
  variable module_name;
  ::playMsg $module_name $msg;
}

 
#
# A convenience function for printing out information prefixed by the
# module name
#
proc printInfo {msg} {
  variable module_name;
  puts "$module_name: $msg";
}

 
#
# This variable is updated by the EchoLink module when a station connects or
# disconnects. It contains the number of currently connected stations.
#
variable num_connected_stations 0;
 
 
#
# Executed when this module is being activated
#
proc activating_module {} {
  variable module_name;
  Module::activating_module $module_name;
}

 
#
# Executed when this module is being deactivated.
#
proc deactivating_module {} {
  variable module_name;
  Module::deactivating_module $module_name;
}

 
#
# Executed when the inactivity timeout for this module has expired.
#
proc timeout {} {
  variable module_name;
  Module::timeout $module_name;
}

 
#
# Executed when playing of the help message for this module has been requested.
#
proc play_help {} {
  variable module_name;
  Module::play_help $module_name;
}

 
#
# Spell an EchoLink callsign
#
proc spellEchoLinkCallsign {call} {
  global langdir
  if [regexp {^(\w+)-L$} $call ignored callsign] {
    spellWord $callsign
    playSilence 50
    playMsg "link"
  } elseif [regexp {^(\w+)-R$} $call ignored callsign] {
    spellWord $callsign
    playSilence 50
    playMsg "repeater"
  } elseif [regexp {^\*(.+)\*$} $call ignored name] {
    playMsg "conference"
    playSilence 50
    set lc_name [string tolower $name]
    if [file exists "$langdir/EchoLink/conf-$lc_name.wav"] {
      playFile "$langdir/EchoLink/conf-$lc_name.wav"
    } else {
      spellEchoLinkCallsign $name
    }
  } else {
    spellWord $call
  }
}

 
#
# Executed when a request to list all connected stations is received.
# That is, someone press DTMF "1#" when the EchoLink module is active.
#
proc list_connected_stations {connected_stations} {
  playNumber [llength $connected_stations];
  playSilence 50;
  playMsg "connected_stations";
  foreach {call} "$connected_stations" {
    spellEchoLinkCallsign $call;
    playSilence 250;
  }
}

 
#
# Executed when someone tries to setup an outgoing EchoLink connection but
# the directory server is offline due to communications failure.
#
proc directory_server_offline {} {
  playMsg "directory_server_offline";
}

 
#
# Executed when the limit for maximum number of QSOs has been reached and
# an outgoing connection request is received.
#
proc no_more_connections_allowed {} {
  # FIXME: Change the message to something that makes more sense...
  playMsg "link_busy";
}

 
#
# Executed when a status report is requested. This usually happens at
# manual identification when the user press DTMF "*".
#
proc status_report {} {
  variable num_connected_stations;
  variable module_name;
  global active_module;
 
  if {$active_module == $module_name} {
    playNumber $num_connected_stations;
    playMsg "connected_stations";
  }
}

 
#
# Executed when an EchoLink id cannot be found in an outgoing connect request.
#
proc station_id_not_found {station_id} {
  playNumber $station_id;
  playMsg "not_found";
}

 
#
# Executed when the lookup of an EchoLink callsign fail in an outgoing connect
# request.
#
proc lookup_failed {station_id} {
  playMsg "operation_failed";
}

 
#
# Executed when a local user tries to connect to the local node.
#
proc self_connect {} {
  playMsg "operation_failed";
}

 
#
# Executed when a local user tries to connect to a node that is already
# connected.
#
proc already_connected_to {call} {
  playMsg "already_connected_to";
  playSilence 50;
  spellEchoLinkCallsign $call;
}

 
#
# Executed when an internal error occurs.
#
proc internal_error {} {
  playMsg "operation_failed";
}

 
#
# Executed when an outgoing connection has been requested.
#
proc connecting_to {call} {
  playMsg "connecting_to";
  spellEchoLinkCallsign $call;
  playSilence 500;
}

 
#
# Executed when an EchoLink connection has been terminated
#
proc disconnected {call} {
  spellEchoLinkCallsign $call;
  playMsg "disconnected";
  playSilence 500;
}

 
#
# Executed when an incoming EchoLink connection has been accepted.
#
proc remote_connected {call} {
  playMsg "connected";
  spellEchoLinkCallsign $call;
  playSilence 500;
}

 
#
# Executed when an outgoing connection has been established.
#   call - The callsign of the remote station
#
proc connected {call} {
  #puts "Outgoing Echolink connection to $call established"
  playMsg "connected";
  playSilence 500;
}

 
#
# Executed when the list of connected remote EchoLink clients changes
#   client_list - List of connected clients
#
proc client_list_changed {client_list} {
  #foreach {call} $client_list {
  #  puts $call
  #}
}

 
#
# Executed when the EchoLink connection has been idle for too long. The
# connection will be terminated.
#
proc link_inactivity_timeout {} {
  playMsg "timeout";
}

 
#
# Executed when a too short connect by callsign command is received
#
proc cbc_too_short_cmd {cmd} {
  spellWord $cmd;
  playSilence 50;
  playMsg "operation_failed";
}

 
#
# Executed when the connect by callsign function cannot find a match
#
proc cbc_no_match {code} {
  playNumber $code;
  playSilence 50;
  playMsg "no_match";
}

 
#
# Executed when the connect by callsign list has been retrieved
#
proc cbc_list {call_list} {
  playMsg "choose_station";
  set idx 0;
  foreach {call} $call_list {
    incr idx;
    playSilence 500;
    playNumber $idx;
    playSilence 200;
    spellEchoLinkCallsign $call;
  }
}

 
#
# Executed when the connect by callsign function is manually aborted
#
proc cbc_aborted {} {
  playMsg "aborted";
}

 
#
# Executed when an out of range index is entered in the connect by callsign
# list
#
proc cbc_index_out_of_range {idx} {
  playNumber $idx;
  playSilence 50;
  playMsg "idx_out_of_range";
}

 
#
# Executed when there are more than nine matches in the connect by
# callsign function
#
proc cbc_too_many_matches {} {
  playMsg "too_many_matches";
}

 
#
# Executed when no station have been chosen in 60 seconds in the connect
# by callsign function
#
proc cbc_timeout {} {
  playMsg "aborted";
}

 
#
# Executed when the disconnect by callsign list has been retrieved
#
proc dbc_list {call_list} {
  playMsg "disconnect_by_callsign";
  playSilence 200
  playMsg "choose_station";
  set idx 0;
  foreach {call} $call_list {
    incr idx;
    playSilence 500;
    playNumber $idx;
    playSilence 200;
    spellEchoLinkCallsign $call;
  }
}

 
#
# Executed when the disconnect by callsign function is manually aborted
#
proc dbc_aborted {} {
  playMsg "disconnect_by_callsign";
  playMsg "aborted";
}

 
#
# Executed when an out of range index is entered in the disconnect by callsign
# list
#
proc dbc_index_out_of_range {idx} {
  playNumber $idx;
  playSilence 50;
  playMsg "idx_out_of_range";
}

 
#
# Executed when no station have been chosen in 60 seconds in the disconnect
# by callsign function
#
proc dbc_timeout {} {
  playMsg "disconnect_by_callsign";
  playMsg "timeout";
}

 
#
# Executed when a local user enter the DTMF code for playing back the
# local node ID.
#
proc play_node_id {my_node_id} {
  playMsg "node_id_is";
  playSilence 200;
  if { $my_node_id != 0} {
    playNumber $my_node_id;
  } else {
    playMsg "unknown";
  }
}

 
#
# Executed when an entered command failed or have bad syntax.
#
proc command_failed {cmd} {
  spellWord $cmd;
  playMsg "operation_failed";
}

 
#
# Executed when an unrecognized command has been received.
#
proc unknown_command {cmd} {
  spellWord $cmd;
  playMsg "unknown_command";
}

 
#
# Executed when the listen only feature is activated or deactivated
#   status    - The current status of the feature (0=deactivated, 1=activated)
#   activate  - The requested new status of the feature
#               (0=deactivate, 1=activate)
#
proc listen_only {status activate} {
  variable module_name;
 
  if {$status == $activate} {
    playMsg "listen_only";
    playMsg [expr {$status ? "already_active" : "not_active"}];
  } else {
    puts "$module_name: [expr {$activate ? "Activating" : "Deactivating"}]\
          listen only mode.";
    playMsg [expr {$activate ? "activating" : "deactivating"}];
    playMsg "listen_only";
  }
}

 
#
# Executed when an outgoing connection is rejected. This can happen if
# REJECT_OUTGOING and/or ACCEPT_OUTGOING has been setup.
#
proc reject_outgoing_connection {call} {
  spellEchoLinkCallsign $call;
  playSilence 50;
  playMsg "reject_connection";
}

 
#
# Executed when a transmission from an EchoLink station is starting
# or stopping
#   rx   - 1 if receiving or 0 if not
#   call - The callsign of the remote station
#
#
proc is_receiving {rx call} {
  if {$rx == 0} {
    playTone 1000 100 100;
  }
}

 
#
# Executed when a chat message is received from a remote station
#
#   msg -- The message text
#
# WARNING: This is a slightly dangerous function since unexepected input
# may open up a security flaw. Make sure that the message string is handled
# as unknown data that can contain anything. Check it thoroughly before
# using it. Do not run SvxLink as user root.
proc chat_received {msg} {
  #puts $msg
}

 
#
# Executed when an info message is received from a remote station
#
#   call -- The callsign of the sending station
#   msg  -- The message text
#
# WARNING: This is a slightly dangerous function since unexepected input
# may open up a security flaw. Make sure that the message string is handled
# as unknown data that can contain anything. Check it thoroughly before
# using it. Do not run SvxLink as user root.
proc info_received {call msg} {
  #puts "$call: $msg"
}

 
#
# Executed when a configuration variable is updated at runtime
#
proc config_updated {tag value} {
  #puts "Configuration variable updated: $tag=$value"
}

 
#-----------------------------------------------------------------------------
# The events below are for remote EchoLink announcements. Sounds are not
# played over the local transmitter but are sent to the remote station.
#-----------------------------------------------------------------------------

#
# Executed when an incoming connection is accepted
#
proc remote_greeting {call} {
#  playSilence 1000;
#  playMsg "greeting";
}

 
#
# Executed when an incoming connection is rejected
#
proc reject_remote_connection {perm} {
  playSilence 1000;
  if {$perm} {
    playMsg "reject_connection";
  } else {
    playMsg "reject_connection";
    playMsg "please_try_again_later"
  }
  playSilence 1000;
}

 
#
# Executed when the inactivity timer times out
#
proc remote_timeout {} {
  playMsg "timeout";
  playSilence 1000;
}

 
#
# Executed when the squelch state changes
#
proc squelch_open {is_open} {
  # The listen_only_active and CFG_REMOTE_RGR_SOUND global variables are set by
  # the C++ code
  variable listen_only_active
  variable CFG_REMOTE_RGR_SOUND
  if {$CFG_REMOTE_RGR_SOUND && !$is_open && !$listen_only_active} {
    playSilence 200
    playTone 1000 100 100
  }
}

 
# end of namespace
}

#
# This file has not been truncated
#

John Pumford-Green Tue May 3 20:58:10 2022

Page Updated : 04/06/26 07:39 BST

svxlink, mb7aze, radio

SVXLink

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 18:54:53 +0000

←Radio Topics

SVXLink

— John Pumford-Green 10/06/25 08:58 BST

Further Information

radio, svxlink

svxlink hotspot

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 06:39:56 +0000

←SVXLink

svxlink hotspot

Hardware

Platform	Raspberry Pi
Software	SVXLink
Interface	CM108 soundcard
Radio	IC-2E

Background

Remote/portable personal node.

Similar setup to MB7AZE but without the connection to Echolink and monitoring fewer TalkGroups. I use TG 8 as a testing ground to keep my traffic off the rest of the system.

UPDATE — John Pumford-Green 03/06/22 17:57

Making it into a mobile hotspot/echolink node/SVXreflector/parrot….

Svx Mobile

Networking

Usual method of deployment is to use a small MiFi 4G router as an access point to let the Raspberry Pi reach the internet. When this MiFi router is in use the node is on an inaccessible network and I can't reach it to make changes or shut it down.

The answer is SSH Tunnels

I use a “Remote SSH Tunnel” to get access to it from my home LAN.

The idea is that the remote node makes an outgoing SSH connection, to a machine on my LAN. I have an open port in the router forwarded to an internal machine for SSH access when I'm away from home. This is straightforward, and the remote Pi can easily create a SSH session on to my PC in the shack.

ssh -p xxxxx my.external.host.name

Along with this incoming SSH connection from the remote node is also a request to set up a “Remote Tunnel” which makes the internal Shack PC set up a listening SSH port. After this is done, any connection to this new listening port will be sent backwards to the remote node, tunnelling within the existing SSH connection.

This tunnel will now accept incoming connections from machines inside my LAN and forward them to the remote node. I can now effectively SSH to the remote SVXLink node as if it were on my LAN in the shack.

The magic is all done in SSH, but to make it more robust I use a package called autossh which is a wrapper around SSH that monitors for loss of the tunnel connection and initiates a new connection automatically if it should fail for any reason.

Here is the script that fires it all off:

tunnel.sh

#!/bin/bash
 
autossh -M 20000 -N -T gm4slv_tunnel

Simple enough, but effective.

The gm4slv_tunnel is connection defined in .ssh/config as:

Host gm4slv_tunnel
	HostName gm4slv.plus.com
	User gm4slv
	Port xxxxx
	RemoteForward 4446 localhost:22
	RemoteForward 8080 192.168.0.1:80

This sets up a remote tunnel, listening on port 4446 of my shack PC that will be forwarded back up the SSH connection to the SVXLink Raspberry Pi. It also sets up a listening port 8080 which gives me http access to the 4G MiFi router at the remote site in case I want to shut it down or reboot it or whatever. I just browse to http://my_shack_pc:8080 and I'm actually logged into the MiFi router. Magic!

etc/ssh/sshd_conf needs to have Gateway Ports yes to allow the Shack PC to accept connections to its new remote listening ports (4446 for SSH and 8080 for HTTP) from other LAN machines, otherwise these ports would only be accessible to the Shack PC itself (on “localhost:4446” or “localhost:8080”)

To allow an unattended/automatic login from the remote Raspberry Pi to the Shack PC it's necessary to set up public_key authentication and to have a passphrase-less key on the Raspberry Pi.

Generate a public/private key pair on the Raspberry Pi with ssh-keygen and don't enter a passphrase before saving it in .ssh/id_rsa and .ssh/id_rsa.pub. Then transfer a copy of .ssh/id_rsa.pub from the Raspberry Pi to the Shack PC and put it in the authorized_keys2 file:

(on Raspberry Pi):

$ scp .ssh/id_rsa.pub user@shack_pc:

enter password etc. to do the initial scp transfer

(on Shack PC)

$ cat id_rsa.pub » .ssh/authorized_keys2

then any further SSH or SCP sessions from the Rasperry Pi to the Shack PC should occur without any need for passwords.

The Pi is now set up for automatic SSH Remote Tunnel - as long as the script is run at boot time:

Crontab is used to fire off the tunnel and start SVXLink @reboot

@reboot sleep 60 && sudo -u gm4slv /home/gm4slv/tunnel.sh 2>&1
@reboot sleep 30 && sudo -u gm4slv /home/gm4slv/svx_ref.sh >/dev/null 2>&1

To check the Tunnel is up you look at netstat -ntl on the Shack PC:

gm4slv@laptop:~ $ sudo netstat -ntlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      854/sshd: /usr/sbin
tcp        0      0 0.0.0.0:631             0.0.0.0:*               LISTEN      167630/cupsd
tcp        0      0 0.0.0.0:23              0.0.0.0:*               LISTEN      761/inetd
tcp        0      0 0.0.0.0:17500           0.0.0.0:*               LISTEN      62324/dropbox
tcp        0      0 0.0.0.0:445             0.0.0.0:*               LISTEN      1134/smbd
tcp        0      0 0.0.0.0:4446            0.0.0.0:*               LISTEN      2537/sshd: gm4slv
tcp        0      0 127.0.0.1:17600         0.0.0.0:*               LISTEN      62324/dropbox
tcp        0      0 0.0.0.0:20000           0.0.0.0:*               LISTEN      2537/sshd: gm4slv
tcp        0      0 0.0.0.0:514             0.0.0.0:*               LISTEN      647/rsyslogd
tcp        0      0 127.0.0.1:17603         0.0.0.0:*               LISTEN      62324/dropbox
tcp        0      0 127.0.0.1:2947          0.0.0.0:*               LISTEN      1/init
tcp        0      0 0.0.0.0:139             0.0.0.0:*               LISTEN      1134/smbd
tcp        0      0 0.0.0.0:27659           0.0.0.0:*               LISTEN      854/sshd: /usr/sbin
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      1/init
tcp        0      0 0.0.0.0:8080            0.0.0.0:*               LISTEN      2537/sshd: gm4slv

SSH is listening on ports 4446, 20000 and 8080 which proves it's up and running.

Port 20000 (and 20001) is used by autossh to handle its “is the tunnel still up” packets.

From the Shack PC I can ssh localhost -p 4446 and reach the remove Pi, hostname svx

gm4slv@laptop:~ $ ssh localhost -p 4446
Linux svx 5.15.32-v7+ #1538 SMP Thu Mar 31 19:38:48 BST 2022 armv7l
 
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
 
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Wed May  4 14:28:06 2022 from 127.0.0.1
gm4slv@svx:~ $ who
gm4slv   pts/0        2022-05-04 14:35 (127.0.0.1)
gm4slv@svx:~ $ whoami
gm4slv
gm4slv@svx:~ $ ls
backup         greeting.wav   id_rsa.pub    id_svx.pub  node_info.json      svxlink          svxlink.log        svxlink-sounds-en_US-heather      svx_ref.sh
backup.tar     hosts          id_sdr.pub    log1.log    ReflectorLogic.tcl  svxlink.conf     svxlink_noel.conf  svxlink-sounds-en_US-heather.tar  tunnel.sh
git_backup.sh  id_laptop.pub  id_shack.pub  Logic.tcl   svx_el.sh           svxlink_el.conf  svxlink_ref.conf   svx_noel.sh
gm4slv@svx:~ $

John Pumford-Green Wed May 4 11:25:01 2022

Page Updated : 04/06/26 07:39 BST

radio, pi, svxlink, linux, ssh

SVXLink : Install from source

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 19:55:20 +0000

←SVXLink

SVXLink : Install from source

70cm Simplex Gateway MB7AZE

SVXLink installed on Raspberry Pi - compiled from author's Git repository.

VOIP networking is achieved using the SVXReflector protocol connecting to a reflector server run by Chris G4NAB. This connects SVXLink systems together and provides “Talkgroups” in a similar manner to DMR. There is a web portal to observe the network in real time here:

http://svxportal-uk.ddns.net:81/index.php

install a current version of SVXLink

Get current Git version

git clone https://github.com/sm0svx/svxlink.git

Install Dependencies

A lot of dependencies are required, and not all of them are obvious from the INSTALL doc in the source, needing a few iterations of running cmake -DUSE_QT=no .. and then installing whatever package is highlighted as missing. This might need repeating several times to grab everything required, and to successfully complete the cmake phase.

Eventually everything is installed allowing the SVXlink package to be configured and built.

Configure

When configuring with cmake I used a command line switch -DUSE_QT=no to avoid QT dependencies and building QTel client :

cd svxlink/src
mkdir build
cd build
cmake -DUSE_QT=no ..
make
sudo make install
ldconfig

Update to latest version from GIT

cd svxlink
git pull
cd src/build
make
sudo make install
sudo ldconfig

Running Svlink

Start SVXLINK from script in home directory

svx_ref.sh

#!/bin/bash
 
CFG=/usr/local/etc/svxlink/svxlink.conf
LOG=/home/gm4slv/svxlink.log
 
sudo killall svxlink
sudo killall svxlink
sudo killall svxlink
 
sudo svxlink --daemon --logfile=$LOG --config=$CFG
exit 0

Probably need up to date sound files, with the additional items needed for reflector use:

https://github.com/sm0svx/svxlink-sounds-en_US-heather/releases

Configuration file

svxlink.conf

Crontab

to start at reboot

@reboot sleep 30 && sudo -u gm4slv /home/gm4slv/svx_ref.sh >/dev/null 2>&1

John Pumford-Green Tue May 3 20:56:09 2022#

Page Updated : 04/06/26 20:55 BST

svxlink, mb7aze, radio

Svxlink Update (Dual Gateway)

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 19:58:40 +0000

←SVXLink

Svxlink Update (Dual Gateway)

— John Pumford-Green 02/06/22 19:56

To allow testing and comparison between 2m and 70cm I've got two SVXLink gateways running.

MB7AZE : 70cm : 430.050MHz @ 3W using FT-60
GM4SLV : 2m : 144.625MHz @ ??W using FT-8900

Both feed the same dual band colinear via a duplexer.

Both are connected to G4NAB's SVXReflector http://svxportal-uk.ddns.net:81/index.php

(UPDATE — John Pumford-Green 03/06/22 09:05)

I now realize that the DTMF problems were due to setting de-emphasis ON while actually using the audio feed from the FT-8900 for 1200 packet, which already has de-emphasis applied. So I was doing double-de-emphasis.

No wonder the tones were being mangled.

The ~~deleted~~ section below shows what steps I took to restore the tone detection in this situation, but this isn't actually necessary if the correct audio feed is used. The quick-fix is to turn SVXLink's de-emphasis OFF and restore the DTMF twist to its normal value. The better fix will be to re-wire the interface to use the flat 9600 baud audio and restore SVXLink's de-emphasis.

Set up audio levels MB7AZE SvxLink Config

Some tweaks were necessary to get GM4SLV to work - DTMF detection was flaky on certain digits when RX de-emphasis was enabled - which is necessary when using the 9600 packet flat-audio feed from the FT-8900. The issue seems to be the roll-off of the de-emphasis affecting the DTMF digits that use the widest spaced tone-pairs. There's are configuration items that can fix the problem: DTMF_MAX_FWD_TWIST and DTMF_MAX_REV_TWIST in the [Local Receiver] section. I had to set DTMF_MAX_FWD_TWIST to 15 to fix the problem.

The GM4SLV gateway now uses the FT-8900 via an unmodified CM108 sound dongle.

The PTT is from GPIO25 and SQL is from CTCSS.

I've swapped the Echolink service from MB7AZE-L to GM4SLV-L.

For the next period of testing MB7AZE will be lower profile, and the FT-60 handheld can not handle long periods of transmitting (e.g. when set on HUBNET or similar).

The start-up script that also sets up GPIO (for PTT):

#!/bin/bash
 
CFG=/usr/local/etc/svxlink/svxlink.conf
LOG=/home/gm4slv/svxlink.log
 
sudo killall svxlink
sudo killall svxlink
sudo killall svxlink
 
echo "25" > /sys/class/gpio/export
 
sleep 2
 
echo "out" > /sys/class/gpio/gpio25/direction
 
sudo svxlink --daemon --logfile=$LOG --config=$CFG
exit 0

crontab to start it at reboot

@reboot sleep 30 && sudo -u gm4slv /home/gm4slv/svx_ref.sh >/dev/null 2>&1

Here is the current ''svxlink.conf'' for GM4SLV :

 
 
[GLOBAL]
LOGICS=SimplexLogic,ReflectorLogic
CFG_DIR=svxlink.d
TIMESTAMP_FORMAT="%c"
CARD_SAMPLE_RATE=48000
LOCATION_INFO=LocationInfo
LINKS=LinkToReflector
 
[SimplexLogic]
TYPE=Simplex
RX=Rx1
TX=Tx1
MODULES=ModuleHelp,ModuleParrot,ModuleEchoLink	
CALLSIGN=GM4SLV
SHORT_IDENT_INTERVAL=0
SHORT_CW_ID_ENABLE=0
SHORT_VOICE_ID_ENABLE=0
CW_AMP=-20
CW_PITCH=1000
CW_WPM=20
LONG_IDENT_INTERVAL=0
LONG_VOICE_ID_ENABLE=0
LONG_CW_ID_ENABLE=0
EVENT_HANDLER=/usr/local/share/svxlink/events.tcl
DEFAULT_LANG=en_GB
RGR_SOUND_DELAY=0
TX_CTCSS=ALWAYS
MACROS=Macros
FX_GAIN_NORMAL=0
FX_GAIN_LOW=-12
ONLINE_CMD=998877
TIME_FORMAT=24
RGR_SOUND_ALWAYS=1
 
[RepeaterLogic]
 
[ReflectorLogic]
TYPE=Reflector
HOSTS=svxportal-uk.ddns.net
HOST_PORT=5300
CALLSIGN="change this"
AUTH_KEY="change this too"
JITTER_BUFFER_DELAY=0
DEFAULT_LANG=en_GB
DEFAULT_TG=0
MONITOR_TGS=8,91,235,2350,2351,23561
TG_SELECT_TIMEOUT=60
ANNOUNCE_REMOTE_MIN_INTERVAL=300
MUTE_FIRST_TX_LOC=0
MUTE_FIRST_TX_REM=0
TMP_MONITOR_TIMEOUT=3600
EVENT_HANDLER=/usr/local/share/svxlink/events.tcl
NODE_INFO_FILE=/usr/local/etc/svxlink/node_info.json
 
[LinkToReflector]
CONNECT_LOGICS=SimplexLogic:9:,ReflectorLogic
DEFAULT_ACTIVE=1
OPTIONS=DEFAULT_CONNECT,NO_DISCONNECT
 
[QsoRecorder]
REC_DIR=/var/spool/svxlink/qso_recorder
MAX_TIME=3600
SOFT_TIME=300
MAX_DIRSIZE=1024
 
[Voter]
 
[MultiTx]
 
[NetRx]
 
[NetTx]
 
[Rx1]
TYPE=Local
AUDIO_DEV=alsa:plughw:1,0
AUDIO_CHANNEL=0
SQL_DET=CTCSS
SQL_START_DELAY=0
SQL_DELAY=0
SQL_HANGTIME=200
VOX_FILTER_DEPTH=20
VOX_THRESH=1000
CTCSS_FQ=77.0
HID_DEVICE=/dev/hidraw0
HID_SQL_PIN=!VOL_DN
SIGLEV_SLOPE=1
SIGLEV_OFFSET=0
SIGLEV_OPEN_THRESH=30
SIGLEV_CLOSE_THRESH=10
DEEMPHASIS=0
PREAMP=0.0
DTMF_DEC_TYPE=INTERNAL
DTMF_MUTING=1
DTMF_HANGTIME=40
DTMF_SERIAL=/dev/ttyS0
#DTMF_MAX_FWD_TWIST=8
#DTMF_MAX_REV_TWIST=4
 
[WbRx1]
 
[Tx1]
TYPE=Local
AUDIO_DEV=alsa:plughw:1,0
AUDIO_CHANNEL=0
PTT_TYPE=GPIO
PTT_PIN=gpio25
HID_DEVICE=/dev/hidraw0
HID_PTT_PIN=GPIO3
PTT_HANGTIME=500
TIMEOUT=300
TX_DELAY=500
CTCSS_FQ=77.0
CTCSS_LEVEL=20
PREEMPHASIS=1
DTMF_TONE_LENGTH=100
DTMF_TONE_SPACING=50
DTMF_DIGIT_PWR=-15
MASTER_GAIN=0
 
[LocationInfo]
APRS_SERVER_LIST=euro.aprs2.net:14580
STATUS_SERVER_LIST=aprs.echolink.org:5199
LON_POSITION=1.25.30W
LAT_POSITION=60.17.18N
CALLSIGN=EL-GM4SLV
FREQUENCY=144.625
TX_POWER=2
ANTENNA_GAIN=3
ANTENNA_HEIGHT=5m
ANTENNA_DIR=-1
BEACON_INTERVAL=60
TONE=77
COMMENT=Connected to UK Svx Reflector
 
[Macros]
1=EchoLink:9999#
2=EchoLink:973498#
3=EchoLink:662666#
4=:91235#
5=:9123561#
9=:910#

overview of config

See MB7AZE SvxLink Config

Page Info

— John Pumford-Green 02/06/22 19:56

Page last updated: 01/01/70 01:00 BST

echolink, svxlink, radio

SVXLink : DTMF commands

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 06:39:56 +0000

←SVXLink

SVXLink : DTMF commands

https://github.com/sm0svx/svxlink/wiki/SvxLinkServerUserDocs

`*#`	System Status
`0#`	Help Module
`1#`	Parrot Module
`2#`	Echolink Module

`#`	De-activate module

Echolink Module

`<node number>#`	Connect to `<node number>`
`0#`	Play the help message
`1#`	List all connected stations
`2#`	Play local EchoLink node id
`31#`	Connect to a random link or repeater
`32#`	Connect to a random conference
`4#`	Reconnect to the last disconnected station
`50#`	Deactivate listen only mode
`51#`	Activate listen only mode
`6*#`	Use the connect by callsign feature
`#`	If connected = Disconnect, otherwise = Deactivate Echolink module

https://github.com/sm0svx/svxlink/wiki/ModuleEchoLink

Macros

`D1#`	Echolink	9999	Echotest
`D2#`	Echolink	973498	M0HOY-L	Hubnet
`D3#`	Echolink	662666	M0JKT-L	FreeStar
`D4#`	SVX	TG 235	UK Call
`D5#`	SVX	TG 23561	NE Chat
`D9#`	SVX	TG 0	Disconnect

SVXReflector Commands

`9*#`	Talk group status
`90#`	Not implemented yet. Reserved for help.
`91#`	Select previous talk group
`91<TG>#`	Select talk group <TG>
`92#`	QSY all active nodes to a talk group assigned by the reflector server
`92<TG>#`	QSY all active nodes to <TG>
`93#`	Follow last QSY
`94<TG>#`	Temporarily monitor <TG> (60 minutes)

svxlink@groups.io

Page Updated: 04/06/26 07:39 BST

radio, svxlink

Svxlink & Echolink

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 21:01:52 +0000

←SVXLink

Svxlink & Echolink

Revisiting the Analogue FM Voice Gateway

Svxlink Gateway Initial Setup

Trying not to re-invent the wheel

find saved Pi Image File for a previous Svxlink system
copy to a new SD Card and boot a spare Raspberry Pi with it
find and connect a modified CM108 sound-dongle - has PTT and SQL via the dongle's own GPIO
connect to 2m FM radio and test initial config
make any necessary config changes - e.g. MB7AZE → GM4SLV
set up audio levels using devcal
change to 9600 packet interface on 2m radio to remove radio pre/de emphasis and apply pre/de emphasis in Svxlink
set up audio levels again using devcal
Check connectivity to Echolink
- remember to Port Forward on ADSL router : UDP 5198 & 5199 → svxlink Pi's IP address
- consider using a private proxy on my VPS instead? Java JRE and Echolink Proxy

Pi Image File handling

R Pi Image files

Devcal

devcal
remember to sudo killall svxlink to ensure no daemon svxlink processes are running in the background
remember to adjust path to valid svxlink.conf file which will be different to this old example
Set for 3kHz deviation
remember to edit the config file(s) to change the RX Pre-amp and TX Master Gain settings to match those find using Deval

sudo devcal -r -m=3000 -d=3000 /etc/svxlink/svxlink_noel.conf Rx1

sudo devcal -t -m=3000 -d=3000 /etc/svxlink/svxlink_noel.conf Tx1

add the PRE_AMP and MASTER_GAIN settings to both svxlink_el.conf and svxlink_noel.conf

Config Files

One for Echolink Enabled
One for Echolink Disabled
Switch Echolink on/off via DTMF commands
- Edit Logic.tcl to give this functionality

/etc/svxlink/svxlink_el.conf

###############################################################################
#                                                                             #
#                Configuration file for the SvxLink server                    #
#                                                                             #
###############################################################################
 
[GLOBAL]
#MODULE_PATH=/usr/lib/arm-linux-gnueabihf/svxlink
LOGICS=SimplexLogic
CFG_DIR=svxlink.d
TIMESTAMP_FORMAT="%c"
CARD_SAMPLE_RATE=48000
#CARD_CHANNELS=1
#LOCATION_INFO=LocationInfo
#LINKS=LinkToR4
 
[SimplexLogic]
TYPE=Simplex
RX=Rx1
TX=Tx1
MODULES=ModuleHelp,ModuleEchoLink,ModuleParrot
CALLSIGN=GM4SLV
SHORT_IDENT_INTERVAL=15
SHORT_CW_ID_ENABLE=1
SHORT_VOICE_ID_ENABLE=0
CW_AMP=-10
CW_PITCH=800
CW_WPM=20
LONG_IDENT_INTERVAL=60
#IDENT_ONLY_AFTER_TX=4
#EXEC_CMD_ON_SQL_CLOSE=500
EVENT_HANDLER=/usr/local/share/svxlink/events.tcl
DEFAULT_LANG=en_US
RGR_SOUND_DELAY=0
#REPORT_CTCSS=77.0
#TX_CTCSS=ALWAYS
MACROS=Macros
FX_GAIN_NORMAL=0
FX_GAIN_LOW=-12
#ACTIVATE_MODULE_ON_LONG_CMD=4:EchoLink
#QSO_RECORDER=8:QsoRecorder
ONLINE_CMD=998877
#MUTE_RX_ON_TX=1
#MUTE_TX_ON_RX=1
#STATE_PTY=/var/run/svxlink/state
#DTMF_CTRL_PTY=/dev/shm/simplex_dtmf_ctrl
TIME_FORMAT=24
RGR_SOUND_ALWAYS=1
 
[RepeaterLogic]
TYPE=Repeater
RX=Rx1
TX=Tx1
MODULES=ModuleHelp,ModuleParrot,ModuleEchoLink,ModuleTclVoiceMail
CALLSIGN=MYCALL
SHORT_IDENT_INTERVAL=10
LONG_IDENT_INTERVAL=60
#IDENT_ONLY_AFTER_TX=4
#EXEC_CMD_ON_SQL_CLOSE=500
EVENT_HANDLER=/usr/share/svxlink/events.tcl
DEFAULT_LANG=en_US
RGR_SOUND_DELAY=0
REPORT_CTCSS=136.5
#TX_CTCSS=SQL_OPEN
MACROS=Macros
#SEL5_MACRO_RANGE=03400,03499
FX_GAIN_NORMAL=0
FX_GAIN_LOW=-12
#QSO_RECORDER=8:QsoRecorder
#NO_REPEAT=1
IDLE_TIMEOUT=30
OPEN_ON_1750=1000
#OPEN_ON_CTCSS=136:2000
#OPEN_ON_DTMF=*
#OPEN_ON_SQL=5000
#OPEN_ON_SEL5=01234
#OPEN_SQL_FLANK=OPEN
#OPEN_ON_SQL_AFTER_RPT_CLOSE=10
IDLE_SOUND_INTERVAL=3000
#SQL_FLAP_SUP_MIN_TIME=1000
#SQL_FLAP_SUP_MAX_COUNT=10
#ACTIVATE_MODULE_ON_LONG_CMD=4:EchoLink
#IDENT_NAG_TIMEOUT=15
#IDENT_NAG_MIN_TIME=2000
#ONLINE_CMD=998877
#STATE_PTY=/var/run/svxlink/state
#DTMF_CTRL_PTY=/dev/shm/repeater_dtmf_ctrl
 
[ReflectorLogic]
TYPE=Reflector
HOST=reflector.example.com
#PORT=5300
CALLSIGN="MYCALL"
AUTH_KEY="Change this key now!"
#JITTER_BUFFER_DELAY=0
 
[LinkToR4]
CONNECT_LOGICS=RepeaterLogic:94:SK3AB,SimplexLogic:92:SK3CD
#DEFAULT_ACTIVE=1
TIMEOUT=300
#AUTOACTIVATE_ON_SQL=RepeaterLogic
 
 
[QsoRecorder]
REC_DIR=/var/spool/svxlink/qso_recorder
#MIN_TIME=1000
MAX_TIME=3600
SOFT_TIME=300
MAX_DIRSIZE=1024
#DEFAULT_ACTIVE=1
#TIMEOUT=300
#QSO_TIMEOUT=300
#ENCODER_CMD=/usr/bin/oggenc -Q \"%f\" && rm \"%f\"
 
[Voter]
TYPE=Voter
RECEIVERS=Rx1,Rx2,Rx3
VOTING_DELAY=200
BUFFER_LENGTH=0
#REVOTE_INTERVAL=1000
#HYSTERESIS=50
#SQL_CLOSE_REVOTE_DELAY=500
#RX_SWITCH_DELAY=500
#COMMAND_PTY=/dev/shm/voter_ctrl
 
[MultiTx]
TYPE=Multi
TRANSMITTERS=Tx1,Tx2,Tx3
 
[NetRx]
TYPE=Net
HOST=remote.rx.host
TCP_PORT=5210
#LOG_DISCONNECTS_ONCE=0
AUTH_KEY="Change this key now!"
CODEC=S16
#SPEEX_ENC_FRAMES_PER_PACKET=4
#SPEEX_ENC_QUALITY=4
#SPEEX_ENC_BITRATE=15000
#SPEEX_ENC_COMPLEXITY=2
#SPEEX_ENC_VBR=0
#SPEEX_ENC_VBR_QUALITY=4
#SPEEX_ENC_ABR=15000
#SPEEX_DEC_ENHANCER=1
#OPUS_ENC_FRAME_SIZE=20
#OPUS_ENC_COMPLEXITY=10
#OPUS_ENC_BITRATE=20000
#OPUS_ENC_VBR=1
 
[NetTx]
TYPE=Net
HOST=remote.tx.host
TCP_PORT=5210
#LOG_DISCONNECTS_ONCE=0
AUTH_KEY="Change this key now!"
CODEC=S16
#SPEEX_ENC_FRAMES_PER_PACKET=4
#SPEEX_ENC_QUALITY=4
#SPEEX_ENC_BITRATE=15000
#SPEEX_ENC_COMPLEXITY=2
#SPEEX_ENC_VBR=0
#SPEEX_ENC_VBR_QUALITY=4
#SPEEX_ENC_ABR=15000
#SPEEX_DEC_ENHANCER=1
#OPUS_ENC_FRAME_SIZE=20
#OPUS_ENC_COMPLEXITY=10
#OPUS_ENC_BITRATE=20000
#OPUS_ENC_VBR=1
 
[Rx1]
TYPE=Local
AUDIO_DEV=alsa:plughw:1,0
AUDIO_CHANNEL=0
SQL_DET=HIDRAW
SQL_START_DELAY=0
SQL_DELAY=0
SQL_HANGTIME=200
#SQL_EXTENDED_HANGTIME=1000
#SQL_EXTENDED_HANGTIME_THRESH=15
#SQL_TIMEOUT=600
VOX_FILTER_DEPTH=20
VOX_THRESH=1000
#CTCSS_MODE=2
CTCSS_FQ=77.0
#CTCSS_SNR_OFFSET=0
#CTCSS_OPEN_THRESH=15
#CTCSS_CLOSE_THRESH=9
#CTCSS_BPF_LOW=60
#CTCSS_BPF_HIGH=270
#SERIAL_PORT=/dev/ttyUSB0
#SERIAL_PIN=CTS
#SERIAL_SET_PINS=
#EVDEV_DEVNAME=/dev/input/by-id/usb-SYNIC_SYNIC_Wireless_Audio-event-if03
#EVDEV_OPEN=1,163,1
#EVDEV_CLOSE=1,163,0
#GPIO_PATH=/sys/class/gpio
#GPIO_SQL_PIN=gpio25
#PTY_PATH=/tmp/rx1_sql
HID_DEVICE=/dev/hidraw0
HID_SQL_PIN=!VOL_DN
#SIGLEV_DET=TONE
SIGLEV_SLOPE=1
SIGLEV_OFFSET=0
#SIGLEV_BOGUS_THRESH=120
#TONE_SIGLEV_MAP=100,84,60,50,37,32,28,23,19,8
SIGLEV_OPEN_THRESH=30
SIGLEV_CLOSE_THRESH=10
DEEMPHASIS=1
#SQL_TAIL_ELIM=300
PREAMP=-1.5
#PEAK_METER=1
DTMF_DEC_TYPE=INTERNAL
DTMF_MUTING=1
DTMF_HANGTIME=40
DTMF_SERIAL=/dev/ttyS0
#DTMF_PTY=/tmp/rx1_dtmf
#DTMF_MAX_FWD_TWIST=8
#DTMF_MAX_REV_TWIST=4
#1750_MUTING=1
#SEL5_DEC_TYPE=INTERNAL
#SEL5_TYPE=ZVEI1
#FQ=433475000
#MODULATION=FM
#WBRX=WbRx1
 
[WbRx1]
#TYPE=RtlUsb
#DEV_MATCH=0
#HOST=localhost
#PORT=1234
#CENTER_FQ=435075000
#FQ_CORR=0
#GAIN=0
#PEAK_METER=1
#SAMPLE_RATE=960000
 
[Tx1]
TYPE=Local
AUDIO_DEV=alsa:plughw:1,0
AUDIO_CHANNEL=0
PTT_TYPE=Hidraw
#PTT_PORT=/dev/ttyS0
#PTT_PIN=HIDRAW
HID_DEVICE=/dev/hidraw0
HID_PTT_PIN=GPIO3
#SERIAL_SET_PINS=DTR!RTS
#GPIO_PATH=/sys/class/gpio
#PTT_HANGTIME=1000
TIMEOUT=300
TX_DELAY=500
#CTCSS_FQ=136.5
#CTCSS_LEVEL=9
PREEMPHASIS=1
DTMF_TONE_LENGTH=100
DTMF_TONE_SPACING=50
DTMF_DIGIT_PWR=-15
MASTER_GAIN=-1.25
 
[LocationInfo]
#APRS_SERVER_LIST=euro.aprs2.net:14580
STATUS_SERVER_LIST=aprs.echolink.org:5199
LON_POSITION=1.25.30W
LAT_POSITION=60.17.18N
CALLSIGN=EL-GM4SLV
FREQUENCY=144.912
TX_POWER=5
ANTENNA_GAIN=0
ANTENNA_HEIGHT=2m
ANTENNA_DIR=-1
#PATH=WIDE1-1
BEACON_INTERVAL=10
STATISTICS_INTERVAL=10
TONE=0
COMMENT=SvxLink
 
[Macros]
1=EchoLink:9999#
2=EchoLink:973498#
3=EchoLink:662666#

/etc/svxlink/svxlink_noel.conf

###############################################################################
#                                                                             #
#                Configuration file for the SvxLink server                    #
#                                                                             #
###############################################################################
 
[GLOBAL]
#MODULE_PATH=/usr/lib/arm-linux-gnueabihf/svxlink
LOGICS=SimplexLogic
CFG_DIR=svxlink.d
TIMESTAMP_FORMAT="%c"
CARD_SAMPLE_RATE=48000
#CARD_CHANNELS=1
#LOCATION_INFO=LocationInfo
#LINKS=LinkToR4
 
[SimplexLogic]
TYPE=Simplex
RX=Rx1
TX=Tx1
MODULES=ModuleHelp,ModuleParrot
CALLSIGN=GM4SLV
SHORT_IDENT_INTERVAL=15
SHORT_CW_ID_ENABLE=1
SHORT_VOICE_ID_ENABLE=0
CW_AMP=-10
CW_PITCH=800
CW_WPM=20
LONG_IDENT_INTERVAL=60
#IDENT_ONLY_AFTER_TX=4
#EXEC_CMD_ON_SQL_CLOSE=500
EVENT_HANDLER=/usr/local/share/svxlink/events.tcl
DEFAULT_LANG=en_GB
RGR_SOUND_DELAY=0
#REPORT_CTCSS=77.0
#TX_CTCSS=ALWAYS
MACROS=Macros
FX_GAIN_NORMAL=0
FX_GAIN_LOW=-12
#ACTIVATE_MODULE_ON_LONG_CMD=4:EchoLink
#QSO_RECORDER=8:QsoRecorder
ONLINE_CMD=998877
#MUTE_RX_ON_TX=1
#MUTE_TX_ON_RX=1
#STATE_PTY=/var/run/svxlink/state
#DTMF_CTRL_PTY=/dev/shm/simplex_dtmf_ctrl
TIME_FORMAT=24
RGR_SOUND_ALWAYS=1
 
[RepeaterLogic]
TYPE=Repeater
RX=Rx1
TX=Tx1
MODULES=ModuleHelp,ModuleParrot,ModuleEchoLink,ModuleTclVoiceMail
CALLSIGN=MYCALL
SHORT_IDENT_INTERVAL=10
LONG_IDENT_INTERVAL=60
#IDENT_ONLY_AFTER_TX=4
#EXEC_CMD_ON_SQL_CLOSE=500
EVENT_HANDLER=/usr/share/svxlink/events.tcl
DEFAULT_LANG=en_US
RGR_SOUND_DELAY=0
REPORT_CTCSS=136.5
#TX_CTCSS=SQL_OPEN
MACROS=Macros
#SEL5_MACRO_RANGE=03400,03499
FX_GAIN_NORMAL=0
FX_GAIN_LOW=-12
#QSO_RECORDER=8:QsoRecorder
#NO_REPEAT=1
IDLE_TIMEOUT=30
OPEN_ON_1750=1000
#OPEN_ON_CTCSS=136:2000
#OPEN_ON_DTMF=*
#OPEN_ON_SQL=5000
#OPEN_ON_SEL5=01234
#OPEN_SQL_FLANK=OPEN
#OPEN_ON_SQL_AFTER_RPT_CLOSE=10
IDLE_SOUND_INTERVAL=3000
#SQL_FLAP_SUP_MIN_TIME=1000
#SQL_FLAP_SUP_MAX_COUNT=10
#ACTIVATE_MODULE_ON_LONG_CMD=4:EchoLink
#IDENT_NAG_TIMEOUT=15
#IDENT_NAG_MIN_TIME=2000
#ONLINE_CMD=998877
#STATE_PTY=/var/run/svxlink/state
#DTMF_CTRL_PTY=/dev/shm/repeater_dtmf_ctrl
 
[ReflectorLogic]
TYPE=Reflector
HOST=reflector.example.com
#PORT=5300
CALLSIGN="MYCALL"
AUTH_KEY="Change this key now!"
#JITTER_BUFFER_DELAY=0
 
[LinkToR4]
CONNECT_LOGICS=RepeaterLogic:94:SK3AB,SimplexLogic:92:SK3CD
#DEFAULT_ACTIVE=1
TIMEOUT=300
#AUTOACTIVATE_ON_SQL=RepeaterLogic
 
 
[QsoRecorder]
REC_DIR=/var/spool/svxlink/qso_recorder
#MIN_TIME=1000
MAX_TIME=3600
SOFT_TIME=300
MAX_DIRSIZE=1024
#DEFAULT_ACTIVE=1
#TIMEOUT=300
#QSO_TIMEOUT=300
#ENCODER_CMD=/usr/bin/oggenc -Q \"%f\" && rm \"%f\"
 
[Voter]
TYPE=Voter
RECEIVERS=Rx1,Rx2,Rx3
VOTING_DELAY=200
BUFFER_LENGTH=0
#REVOTE_INTERVAL=1000
#HYSTERESIS=50
#SQL_CLOSE_REVOTE_DELAY=500
#RX_SWITCH_DELAY=500
#COMMAND_PTY=/dev/shm/voter_ctrl
 
[MultiTx]
TYPE=Multi
TRANSMITTERS=Tx1,Tx2,Tx3
 
[NetRx]
TYPE=Net
HOST=remote.rx.host
TCP_PORT=5210
#LOG_DISCONNECTS_ONCE=0
AUTH_KEY="Change this key now!"
CODEC=S16
#SPEEX_ENC_FRAMES_PER_PACKET=4
#SPEEX_ENC_QUALITY=4
#SPEEX_ENC_BITRATE=15000
#SPEEX_ENC_COMPLEXITY=2
#SPEEX_ENC_VBR=0
#SPEEX_ENC_VBR_QUALITY=4
#SPEEX_ENC_ABR=15000
#SPEEX_DEC_ENHANCER=1
#OPUS_ENC_FRAME_SIZE=20
#OPUS_ENC_COMPLEXITY=10
#OPUS_ENC_BITRATE=20000
#OPUS_ENC_VBR=1
 
[NetTx]
TYPE=Net
HOST=remote.tx.host
TCP_PORT=5210
#LOG_DISCONNECTS_ONCE=0
AUTH_KEY="Change this key now!"
CODEC=S16
#SPEEX_ENC_FRAMES_PER_PACKET=4
#SPEEX_ENC_QUALITY=4
#SPEEX_ENC_BITRATE=15000
#SPEEX_ENC_COMPLEXITY=2
#SPEEX_ENC_VBR=0
#SPEEX_ENC_VBR_QUALITY=4
#SPEEX_ENC_ABR=15000
#SPEEX_DEC_ENHANCER=1
#OPUS_ENC_FRAME_SIZE=20
#OPUS_ENC_COMPLEXITY=10
#OPUS_ENC_BITRATE=20000
#OPUS_ENC_VBR=1
 
[Rx1]
TYPE=Local
AUDIO_DEV=alsa:plughw:1,0
AUDIO_CHANNEL=0
SQL_DET=HIDRAW
SQL_START_DELAY=0
SQL_DELAY=0
SQL_HANGTIME=200
#SQL_EXTENDED_HANGTIME=1000
#SQL_EXTENDED_HANGTIME_THRESH=15
#SQL_TIMEOUT=600
VOX_FILTER_DEPTH=20
VOX_THRESH=1000
#CTCSS_MODE=2
CTCSS_FQ=77.0
#CTCSS_SNR_OFFSET=0
#CTCSS_OPEN_THRESH=15
#CTCSS_CLOSE_THRESH=9
#CTCSS_BPF_LOW=60
#CTCSS_BPF_HIGH=270
#SERIAL_PORT=/dev/ttyUSB0
#SERIAL_PIN=CTS
#SERIAL_SET_PINS=
#EVDEV_DEVNAME=/dev/input/by-id/usb-SYNIC_SYNIC_Wireless_Audio-event-if03
#EVDEV_OPEN=1,163,1
#EVDEV_CLOSE=1,163,0
#GPIO_PATH=/sys/class/gpio
#GPIO_SQL_PIN=gpio25
#PTY_PATH=/tmp/rx1_sql
HID_DEVICE=/dev/hidraw0
HID_SQL_PIN=!VOL_DN
#SIGLEV_DET=TONE
SIGLEV_SLOPE=1
SIGLEV_OFFSET=0
#SIGLEV_BOGUS_THRESH=120
#TONE_SIGLEV_MAP=100,84,60,50,37,32,28,23,19,8
SIGLEV_OPEN_THRESH=30
SIGLEV_CLOSE_THRESH=10
DEEMPHASIS=1
#SQL_TAIL_ELIM=300
PREAMP=-1.5
#PEAK_METER=1
DTMF_DEC_TYPE=INTERNAL
DTMF_MUTING=1
DTMF_HANGTIME=40
DTMF_SERIAL=/dev/ttyS0
#DTMF_PTY=/tmp/rx1_dtmf
#DTMF_MAX_FWD_TWIST=8
#DTMF_MAX_REV_TWIST=4
#1750_MUTING=1
#SEL5_DEC_TYPE=INTERNAL
#SEL5_TYPE=ZVEI1
#FQ=433475000
#MODULATION=FM
#WBRX=WbRx1
 
[WbRx1]
#TYPE=RtlUsb
#DEV_MATCH=0
#HOST=localhost
#PORT=1234
#CENTER_FQ=435075000
#FQ_CORR=0
#GAIN=0
#PEAK_METER=1
#SAMPLE_RATE=960000
 
[Tx1]
TYPE=Local
AUDIO_DEV=alsa:plughw:1,0
AUDIO_CHANNEL=0
PTT_TYPE=Hidraw
#PTT_PORT=/dev/ttyS0
#PTT_PIN=HIDRAW
HID_DEVICE=/dev/hidraw0
HID_PTT_PIN=GPIO3
#SERIAL_SET_PINS=DTR!RTS
#GPIO_PATH=/sys/class/gpio
#PTT_HANGTIME=1000
TIMEOUT=300
TX_DELAY=500
#CTCSS_FQ=136.5
#CTCSS_LEVEL=9
PREEMPHASIS=1
DTMF_TONE_LENGTH=100
DTMF_TONE_SPACING=50
DTMF_DIGIT_PWR=-15
MASTER_GAIN=-1.25
 
[LocationInfo]
APRS_SERVER_LIST=euro.aprs2.net:14580
STATUS_SERVER_LIST=aprs.echolink.org:5199
LON_POSITION=1.25.30W
LAT_POSITION=60.17.18N
CALLSIGN=EL-GM4SLV
FREQUENCY=144.9125
TX_POWER=1
ANTENNA_GAIN=0
ANTENNA_HEIGHT=1m
ANTENNA_DIR=-1
#PATH=WIDE1-1
#BEACON_INTERVAL=60
TONE=77
COMMENT=SvxLink by SM0SVX (www.svxlink.org)
 
[Macros]
1=EchoLink:9999#
2=EchoLink:973498#
3=EchoLink:662666#

/etc/svxlink/svxlink.d/ModuleEchoLink.conf

[ModuleEchoLink]
NAME=EchoLink
ID=2
TIMEOUT=60
#ALLOW_IP=192.168.1.0/24
#DROP_INCOMING=^()$
#REJECT_INCOMING=^()$
#ACCEPT_INCOMING=^(.*)$
#REJECT_OUTGOING=^()$
#ACCEPT_OUTGOING=^(.*)$
#REJECT_CONF=0
#CHECK_NR_CONNECTS=2,300,120
SERVERS=servers.echolink.org
CALLSIGN=GM4SLV-L
PASSWORD=XXXXXXXXX
SYSOPNAME=John
LOCATION=[Svx] Shetland
PROXY_SERVER=my.vps.host.name
PROXY_PORT=8100
PROXY_PASSWORD=my_proxy_password
#BIND_ADDR=10.20.30.40
MAX_QSOS=5
MAX_CONNECTIONS=6
LINK_IDLE_TIMEOUT=900
#AUTOCON_ECHOLINK_ID=9999
#AUTOCON_TIME=1200
#USE_GSM_ONLY=1
#DEFAULT_LANG=en_US
#COMMAND_PTY=/dev/shm/echolink_ctrl
DESCRIPTION="You have connected to a SvxLink node,\n"

/usr/local/share/svxlink/events.d/local

Edit the section proc dtmf_cmd_received {cmd} to add the stanzas that run external bash scripts to stop and restart svxlink with different config files

#
# Executed when a DTMF command has been received
#   cmd - The command
#
# Return 1 to hide the command from further processing is SvxLink or
# return 0 to make SvxLink continue processing as normal.
#
# This function can be used to implement your own custom commands or to disable
# DTMF commands that you do not want users to execute.
proc dtmf_cmd_received {cmd} {
  #global active_module

  # Example: Ignore all commands starting with 3 in the EchoLink module.
  #          Allow commands that have four or more digits.
  #if {$active_module == "EchoLink"} {
  #  if {[string length $cmd] < 4 && [string index $cmd 0] == "3"} {
  #    puts "Ignoring random connect command for module EchoLink: $cmd"
  #    return 1
  #  }
  #}

  # Handle the "force core command" mode where a command is forced to be
  # executed by the core command processor instead of by an active module.
  # The "force core command" mode is entered by prefixing a command by a star.
  #if {$active_module != "" && [string index $cmd 0] != "*"} {
  #  return 0
  #}
  #if {[string index $cmd 0] == "*"} {
  #  set cmd [string range $cmd 1 end]
  #}

  # Example: Custom command executed when DTMF 99 is received
  if {$cmd == "99"} {
    puts "Executing external command"
    playMsg "Core" "online"
    exec /home/gm4slv/svx_noel.sh &
    return 1
  }
  # Example: Custom command executed when DTMF 99 is received
  if {$cmd == "98"} {
    puts "Executing external command"
    playMsg "Core" "online"
    exec /home/gm4slv/svx_el.sh &
    return 1
  }
 
  return 0
}

start with echolink : svx_el.sh

#!/bin/bash
 
CFG=/etc/svxlink/svxlink_el.conf
LOG=/home/gm4slv/svxlink.log
 
sudo killall svxlink
sudo killall svxlink
sudo killall svxlink
 
sudo svxlink --daemon --logfile=$LOG --config=$CFG
exit 0

start without echolink : svx_noel.sh

#!/bin/bash
 
CFG=/etc/svxlink/svxlink_noel.conf
LOG=/home/gm4slv/svxlink.log
 
sudo killall svxlink
sudo killall svxlink
sudo killall svxlink
 
sudo svxlink --daemon --logfile=$LOG --config=$CFG
exit 0

crontab entry to start with echolink enabled at boot time

@reboot sleep 30 && sudo -u gm4slv /home/gm4slv/svx_el.sh >/dev/null 2>&1

Catch up with git version

The version of svxlink running on this Pi was self-compiled from the GIT repository
- Update to latest version from GIT
I decided to pull & compile the latest version so I simply followed the instructions I'd put on the above wiki page and all went smoothly (if slowly)

DTMF Commands

Old info SVXLink : DTMF commands
Ignore Reflector commands - I am not (yet) connected to the SVX Reflector http://svxportal-uk.ddns.net:81/index.php

`*#`	System Status
`0#`	Help Module
`1#`	Parrot Module
`2#`	Echolink Module

`#`	De-activate module

Echolink Module

`<node number>#`	Connect to `<node number>`
`0#`	Play the help message
`1#`	List all connected stations
`2#`	Play local EchoLink node id
`31#`	Connect to a random link or repeater
`32#`	Connect to a random conference
`4#`	Reconnect to the last disconnected station
`50#`	Deactivate listen only mode
`51#`	Activate listen only mode
`6*#`	Use the connect by callsign feature
`#`	If connected = Disconnect, otherwise = Deactivate Echolink module

https://github.com/sm0svx/svxlink/wiki/ModuleEchoLink

Macros

`D1#`	Echolink	9999	Echotest
`D2#`	Echolink	973498	M0HOY-L	Hubnet
`D3#`	Echolink	662666	M0JKT-L	FreeStar

Sound files

use en_US when echolink is enabled
- this is also needed for reflector when it's re-enabled, as the US files also have the additional reflector sound samples
use en_GB when echolink is disable
easy to tell from status *# which is active!

Proxy

after consideration….
I decided to use my VPS-hosted echolink proxy
- remove port forwards on home router for UDP/5198 & UDP/5199
- open port TPC/8100 for only my home IP address on VPS
  - this means only one IP address can reach the Proxy on port TCP/8100
- open ports UDP/5198 & UDP/5199 for anywhere on VPS
- edit echolink proxy config on VPS to allow only GM4SLV-L to connect
  - this means only one callsign can connect to the proxy
- start proxy in a tmux session, using bash script on VPS
- edit ModuleEchoLink.conf on svxlink pi to use the proxy
- restart svx_el.sh

PROXY_SERVER=my.vps.host.name
PROXY_PORT=8100
PROXY_PASSWORD=xxxxxxxxx

— John Pumford-Green 06/04/24 07:09

LAST MODIFIED : 04/06/26 22:01 BST

Further Information

radio, svxlink

Svx Mobile

anonymous@undisclosed.example.com (Anonymous) — Thu, 04 Jun 2026 21:03:37 +0000

←SVXLink

Svx Mobile

Plan…

To make a mobile hotspot that will provide access to SVXReflector and Echolink as well as a handy single-frequency parrot repeater.

Hardware

Remains the same as the previous portable hotspot

Raspberry Pi
CM108 soundcard
IC-2E
MiFi router

It will be installed in my vehicle, which also has a TM-D710 for APRS and voice comms.

Add 5V regulator to power R.Pi from 12VDC
Put everything in a grab-box for portability

SVXLink Config

Echolink Module enabled (switchable via DTMF commands)
Echolink using a Java JRE and Echolink Proxy running on my VPS machine to enable incoming connections.

Logic.tcl additions for switching EL on/off

Added to <…>/events.d/local/Logic.tcl

 # Example: Custom command executed when DTMF 97 is received
  if {$cmd == "97"} {
    puts "Executing external command"
    playMsg "Core" "online"
    exec /home/gm4slv/svx_ref_el.sh &
    return 1
  }

  # Example: Custom command executed when DTMF 98 is received
  if {$cmd == "98"} {
    puts "Executing external command"
    playMsg "Core" "online"
    exec /home/gm4slv/svx_ref_noel.sh &
    return 1
  }
  # Example: Custom command executed when DTMF 99 is received
  if {$cmd == "99"} {
    puts "Executing external command"
    playMsg "Core" "online"
    exec /home/gm4slv/svx_noref_el.sh &
    return 1
  }

DTMF command 97# will cause svxlink to restart with Reflector connected, Echolink connected.
DTMF command 98# will cause svxlink to restart with Reflector connected, Echolink disabled.
DTMF command 99# will cause svxlink to restart with Reflector disabled, Echolink connected.

Start with Reflector ON and Echolink ON

97#

#!/bin/bash
 
CFG=/usr/local/etc/svxlink/svxlink_ref_el.conf
LOG=/home/gm4slv/svxlink.log
 
sudo killall svxlink
sudo killall svxlink
sudo killall svxlink
 
echo "25" > /sys/class/gpio/export
 
sleep 2
 
echo "out" > /sys/class/gpio/gpio25/direction
 
sudo svxlink --daemon --logfile=$LOG --config=$CFG
exit 0

Start with Reflector ON, Echolink Disabled

98#

#!/bin/bash
 
CFG=/usr/local/etc/svxlink/svxlink_ref_noel.conf
LOG=/home/gm4slv/svxlink.log
 
sudo killall svxlink
sudo killall svxlink
sudo killall svxlink
 
echo "25" > /sys/class/gpio/export
 
sleep 2
 
echo "out" > /sys/class/gpio/gpio25/direction
 
sudo svxlink --daemon --logfile=$LOG --config=$CFG
exit 0

Start with Reflector disabled, Echolink ON

99#

#!/bin/bash
 
CFG=/usr/local/etc/svxlink/svxlink_noref_el.conf
LOG=/home/gm4slv/svxlink.log
 
sudo killall svxlink
sudo killall svxlink
sudo killall svxlink
 
echo "25" > /sys/class/gpio/export
 
sleep 2
 
echo "out" > /sys/class/gpio/gpio25/direction
 
sudo svxlink --daemon --logfile=$LOG --config=$CFG
exit 0

It's probable that I'll configure the initial start @reboot to be with Reflector and Echolink

crontab → @reboot sleep 30 && sudo -u gm4slv /home/gm4slv/svx_ref_el.sh >/dev/null 2>&1

Using a PROXY server for connecting to Echolink, and be able to accept incoming Echolink connections, is necessary because it's not possible to control external firewall/port forwarding when using the MiFi 4G router for internet access.

Connecting direct to Echolink, without the proxy still allows outgoing Echolink connections to be made

Rather than relying on other PUBLIC Echolink proxies I though it would be wise to install and run a proxy server myself, on the VPS machine. It turned out to be easier than I thought and the basic steps are here

Parrot

I imagine being able to use the Parrot feature as a temporary single-frequency repeater perhaps for emergency use?

I'll experiment….

Page Info

— John Pumford-Green 03/06/22 17:59

Page last updated: 04/06/26 22:03 BST

Make It Tea - public:radio:topics:svxlink

MB7AZE SvxLink

MB7AZE SvxLink

Hardware

Network

Further Reading

See Also

MB7AZE SvxLink Config

MB7AZE SvxLink Config

Main config file

Audio levels

Devcal

For Receive audio input:

For Transmit audio output

To prevent Echolink incoming connections while a Talkgroup is active

<svxinstall>/events.d/local/

SVXLink

SVXLink

Further Information

svxlink hotspot

svxlink hotspot

Hardware

Background

Networking

The answer is SSH Tunnels

SVXLink : Install from source

SVXLink : Install from source

70cm Simplex Gateway MB7AZE

install a current version of SVXLink

Get current Git version

Install Dependencies

Configure

Update to latest version from GIT

Running Svlink

Configuration file

Crontab

to start at reboot

Svxlink Update (Dual Gateway)

Svxlink Update (Dual Gateway)

overview of config

Page Info

SVXLink : DTMF commands

SVXLink : DTMF commands

Echolink Module

Macros

SVXReflector Commands

Svxlink & Echolink

Svxlink & Echolink

Svxlink Gateway Initial Setup

Trying not to re-invent the wheel

Pi Image File handling

Devcal

Config Files

Catch up with git version

DTMF Commands

Echolink Module

Macros

Sound files

Proxy

Further Information

Svx Mobile

Svx Mobile

Hardware

SVXLink Config

Logic.tcl additions for switching EL on/off

Start with Reflector ON and Echolink ON

Start with Reflector ON, Echolink Disabled

Start with Reflector disabled, Echolink ON

Parrot

Page Info